1. => I don't work as hard as my sister does.
2. => Is this the best refrigerator you have ?
3. => This test is not easy enough for us to finidh in an hour.
4. => I have learnt English for 5 years.
5. => I began doing my homework 2 hours ago.
6. => These fruits are not ripe enough for us to eat.
7. => You don't have to finish the work today.
8. => One of the greatest football players in the world is Zidane.
9.=> This book couldn't taken away by you.
10. => I used to have a cat .
11. => Because I was sick, I couldn't go to school.
12. => Your younger brother is not strong enough to lift that box.

It goes without saying that there are numerous factors health problems. In recent years, changing in people's eating habits has noticeable effects on people's health problems, so this factor should be taken into account as one of the underlying reasons. Undoubtedly, people prefer to eat fast food rather than home-made foods, which are healthier for human's body. Furthermore, an immense amount of saturated fat can be found in just a small portion of junk food, which can cause grave health problems in the future for people. Another important factor which causes health problems is to prefer sedentary rather than active works. Lack of mobility and inactivity are the legitimate reasons for various health problems. In recent years, most people spend a great deal of their time not only in front of computer's screen, but also in front of TV to watch different kinds of programs. As a result, obesity is becoming one of the primary phenomenons in 21st century.

235 + 235 = 470

Tick nha

a) Cả đoàn tàu chở số tấn hàng là: ( 7 x 76 ) + ( 5 x 64 ) = 852 ( tấn )

Vậy a điền 852

b) Trung bình mỗi toa chở số tấn hàng là: 852 : ( 7 + 5 ) = 71 ( tấn )

Vậy b điền 71

( Tự vẽ hinh+ ghi GT, KL)
a. Xét ΔAMB và △AMC ta có :
AB=AC ( gt)
∠BAM= ∠MAC( gt) ( do AM là tia phân giác của ∠BAC)
AM chung
⇒△ AMB =△AMC ( c-g-c )
⇒ BM= MC ( 2 cạnh tương ứng )
b. Xét △AMB và △DMC ta có :
AM=MD (gt)
∠AMD= ∠DMC ( đối đỉnh )
BM= MC( chứng minh trên )
⇒ △AMB= △DMC ( c-g-c)
⇒∠BAM= ∠MDC(2 góc tương ứng )
Mà 2 góc ở vị trí so le trong ⇒ AB song song với DC.

1. starts
2. playing
3. was asked
4. ignore
5. has been

About my school:
I love to go to school. When I have a holiday I miss school. I go to school with my friends, and we enjoy biking down together. My school is two kilometers away from home. I wake up early in the morning to go to school as classes begin at quarter past seven every day.

I find my school uniform very smart. The uniform is a white shirt and a blue skirt with a black belt and blue tie. And to go with it is a pair of white socks and black shoes. The teachers are strict about our uniform being neat and spotlessly clean. At the assembly the students, all together, look very neat and well turned out.

At school I learn many new things each day. There are many subjects that are taught to us like languages, mathematics, science and social studies. We also have interesting co-curricular activities that help us learn better. We also go on educative excursions.

There are a number of extra-curricular activities also that are offered to us. We are afforded opportunities to participate in various sports, music, dance, theatre and art events. These are fun activities that also help us develop our hobbies.

6x9=54

4x7=28

5x2=10

6x5=30

4x7=28

About my family:
There are five members in my family. They are my father, my mother, my two brothers Mahmudul and Maksodul and I myself. We live in the village. My father’s name is Md Siddikur Rahman. He is a teacher. He teaches English in a high school. He is a healthy and handsome man. He is very active and dutiful. He is loved and respected by everybody. My mother’s name is Mrs. Mahmuda . She is 40 years old. She is a B.A. She is a housewife. She works at home. She looks after the whole family. Sometimes she goes to market. On holidays, she prepares special dishes. She is a religious woman. She teaches me religion. My elder brother is a service holder. My younger brother is in class 9. I am a stutent of class 8. We are happy family.

Ans: B