Cho nữa đường tròn tâm O đường kính AB. Từ 1 điểm M nằm ngoài trong nữa đường tròn [ M không thuộc AB ]. Kẻ đường thằng vuông góc với AB tại H [ H thuộc A,B,O ]. Kéo dài AM và BM cắt nữa đường tròn lần lượt tại C và D. Gọi N là giao điểm của AD và BC.

a.Chứng minh: D,M,C,N cùng thuộc 1 đường tròn

b.Chứng minh:M,N,H thằng hàng

c.Chứng minh:OD là tiếp tuyến của đường tròn đi qua D,M.C.N

hãy vẽ 1 lưới thức ăn có các sinh vật sau: CỎ, GÀ, MÈO, CHUỘT, CÀO CÀO, RẮN, BÒ, SOI, ĐẠI BÀNG, DIỀU HÂU, VI KHUẨN, ĐỊA Y, CẦY. trong lưới thức ăn có 4 mắc xích chung trở lên

part: Rewrite the following sentences

1.They will publish this book next year

->This book

2.I know a lot of people. They live in Ba Lia - Vung Tau province

->I

3.They last visited their home village five years ago

->They have

4.Our trip to the countryside lasted for 4 days

->We had

5."When will you return the books to the library?" she asked me

->she asked

6.They built our school 2 years ago. 

->Our school

7.We will be late for school if we don't hurry

->Unless we

8."Do your parents live near here, Nam?" asked Ba

->Ba asked

9."Why don't we use a few water?"

->He suggested

10.Try to recycle things and we will save natural resources

->if we

11.We spend the whole day in the garden because of lovely weather

->Because

12.The police continuned to watch the house

->The police went

13.The last time she went our with him was 9 months ago

->It is

14.The police arrested the theif

->The theif

15.She couldn't come to my brithday party because she was busy

->Shw was busy

16.I'm sorry i don't know the way to your house

->I wish

17."Don't play on the street" He said

->He told us

18."Why do you come too late?" She asked me

->She asked

19.He gets up late this morning so he is last for school

->If he

20.The house was so old that it needed reparing

->It was such

21.It took Mai five hours to go to the seaside last week

->Mai spent

22.Nam is too young to drive a car

->Nam isn't

23."I will go to China next week" She said to  me

->She said to me

24.His parents made him study for his examinations 

->He

25."Are you raeding your writing, Nga?" eter said

->Peter told

26.Could you come and collect me from the station

->Would you mind

27.I started studying english three years ago

->I

28.His parents made him study for his examinations

->He

part: Cho dạng đúng của từ trong ngoặc để hoàn thành các câu sau.

1.Peter (not/play).................last weekend

2.I (not/sleep).............................when you came home yesterday

3.Have they decided (lend)..........................their camera for the trip

4.A lot of cakes (make)........................by Lan yesterday

5.Santa claus is based on the (describe)..............................of Saunt Nicholas

6.My uncle drives (care)..........................as my father does

7.Nam is very (help)......................student. He helps me with my study

8.Summer is the (hot).......season in a year

9.They advised us (not go).......................out alone ai night

10.The children were excited about (open)...............their presents

11.I wish you (be)......................here with us now

12.She had her picture (take)....................

13.My brother (walk)..........down the street when it began to rain

14.She (go).......iogging twice a week, but she (go)................by bike yesterday because she (feel)...................sick

15.We (waste)..............................too much power at the momen

16.Please don't make so much noise. I (study)......................

17.If we keep our environment clean, we (have).........................a better and healthier life

18.My brother (work)..................for Samsung Corporation since 2009

19."Nhan dan" newspaper (publish)....................every day. it's a daily newspaper

20.Lan wishes she (speak)......................english fluently

part: Give the correct form of the verb or the words in brackets

1.If you (not, do)....................morning exercises, you should play sports instead

2.Congratulatiins, trang. you (just, win)...............the first prize in the enghlish speaking contest

3.Our beach should (clean).......................everyday to make it more beautiful

4.Don't forget (take).............................your identity card with you to the interview

5.Many people are very concerned about the (destroy)...................of the rainforests

6.The air in the city is heavily (pollute)........................with traffic fumes

7.The local residents promise to keep the environment (clean).....................

8.Our teacher is pleased that we solved the problems (effect)...................

part: Give the correct form of the verbs or the words in bracket

1.On saturday, my mother usually (go)......................shopping

2.My brother (buy)................this house 10 years ago

3.A supermarket will (build)............in my neighborhood next moth

4.These students enjoy (read)................magazine in their free time

5.Would you like (come).................and visit me next summer

6.Tuan has taken part in different charity (active)............in his town

7.The gas from the chemical factoryis extremely (harm)....................

8.If we on littering, the environment will become (serious).....polluted

part: each sentence has one mistake. find and correct it

1.Last night i stayed up late watch tv

2.My father get plumber check crackes in the pies

part: give the corrrect tense and form of the verbs and words in bracket

1.Every day, Nam (get).................up at 5 am

2.While i (practise)................the piano late last night, a neighbour came to complain

3.Tom is looking forward to (meet).....................his grandparents this summer

4.I wish i (have)..............................some money now. I want to by some enghlish books

5.When i was a child, i enjoyed (take)..........................to the zoo

6. We all know that using our cars causes air (pollute)........................, but we still do it

7.The giant panda is (danger)..................beacuse its habitat is being destroyed

8.People were (comple)..................transferred form rural villages to the new tower blocks

part: complete the second sentence so that it has the same meaning a the first one. use no more than four words 

1.This cinema attract lots of youngers

->Lots of youngers.......this cinema

2.I do not have time to visit my old friends frequently

->I wish...............to visit my old friends frequently

3.Lan said "I take a cooking class every  summer" 

->Lan said that.............a cooking class every summer

4.Laura painted a picture. It's being shown in an exhibition

->The picture......................being shown in an exhibition

part: complete each second sentence, using the word given in bold at the end so that it has a similar meaning to the first sentence. use no more than four words way

1.He said to her "My parents are proud of my good marks this year."

->He told..........................proud of his good marks that year

2.The air in the city is not pure. so we are not heathy

->We...................if the air in the city were pure

3.The monitor made no comment on the situation. he was appointed just last week

->The monitor.................just last week made no comment on this situation

4.Every one has to wear safety helmets at all times

->Safety helmts...........................at all times