1 have been carried out

2 working

3 are 

4 to invent

5 attempts

6 have invented

7 organizing

8 be developed

9 to consider

10 be wanted

nowadays, a lot of important inventions (1) .......ARE CARRIED OUT............ (carry out) by scientists (2) .........WORKING.............. (work) for large industrials firms. However, there (3) .........ARE........... (be) still opportunities for other people (4) ............TO INVENT........ (invent) various things. In Britain, there is a weekly TV program which (5) ......ATTEMPTS........... (attempt) to show all the devices which people (6) .....HAVE INVENTED........... (invent) recently. The people (7) .......ORGANIZING.............. (organize)the program receive information about 700 inventions per year. New ideas can (8) .........BE DEVELOPED........... (develope) by private inventors. However, it is important (9) .........TO CONSIDERED.............. (consider) these questions : Will it work? Will it (10) .........BE WANTED........ (want)? Is it new?

Ex22

1 am

2 is

3 was

4 were

5 is

6 was

7 was - was

8 are - were

9 is

10 Were

Ex23

1 learned

2 bought - made

3 cut

4 made

5 decided

6 watched

7 wore

8 fitted

Exercise 22: Fill in the blanks with the correct of To Be 

  Điền vào chỗ trống dang đúng của động từ To Be (am/is/are/was/were)

1. I____am_a student now 

2. She__is__not our teacher.

3. The homework __was___very difficult yesterday

4. The children __were___in the park five minutes ago

5. Nha Trang___is__ a beautiful place

6. I__was___late for school yesterday 

7. Where ____was_she  yesterday ? – She___was__ at home 

8.We___are__tired today. We___were__at the party last night. 

9. She _is____unhappy because she doesn't have any friends in the city 

10. __were___you at home yesterday morning ?

Exercise 23: Complete  sentences , using the simple past form of the given verbs        (Hoàn tất câu, dùng dạng quá khứ đơn của các động từ đã cho )

cut fit buy decide learn watch make wear

1. Hoa. ___learnt__ how to use a sewing machine

2. She ___bought__ some material and _made____ a cushion for her armchair

3. Hoa's aunt ____cut_ Hoa’s hair short

4. She ___bought__ all her own clothes

5. He __decided__ to tell her the truth

6. I __saw__ an exciting football match on TV last night

7. Linda ___wore_ a long dress to the party

8. The  uniform _fitted____her very well

tỉnh 

mk cũng ko chắc

chắc là đèo

chắc là tỉnh đấy

love ?

Playing

Vậy đáp án đúng là:

Tuổi thơ chập chững đến trường
Cô dang tay đón tình thương mẹ hiền.

rạch ròi 

giang sơn

rũ rượi

du lịch

những từ đúng đây em

từ dùng đúng : rạch ròi , rũ rượi ,giang sơn ,du lịch

rạch ròi

 du lịch; rũ rượi

giang sơn

is

is

is

1. She is very beautiful.                   (beauty)

1. She is very beautiful .

beautyful

0 ; 1 ; 3 ; 14 ; 28 ; 45 ; 65 ; 88

Quy luật bắt đầu từ số thứ 3 :

3 + 11 = 14

14 + 14 = 28

28 + 17 = 45

=> 2 số tiếp theo là :

45 + 20 = 65

65 + 23 = 88

0,1,3,14,28,45,65,88

máy bay đang bay từ bay thuộc dạng Đồng âm