a. 18

b. 42

10. ....will look ......

1. It's better for schoolgirls to wear trousers and blouses when they're at school.

2. Wearing trousers and blouses is convenient when students ride a bicycle to school.
3. They don't have to worry about keeping their trousers straight in place when there are strong winds.
4. Schoolgirls feel more comfortable when doing the cleaning the classrooms or playing schoolyard.

5. The long trousers can help schoolgirls hide the defect in their body.

6. Schoolgirls in my school like wearing trousers and blouses

7. However, wearing skirts and blouses makes schoolgirls look more feminine and different from schoolboys.

8. Wearing skirts and blouses is convenient in hot weather.

9. The short skirts expose students' legs which helps reduce body heat.

10. If boys and girls wear trousers, the school looks quite boring. How about your opinion?

one girl

Một dàn hợp xướng của trường có tổng cộng 72 thành viên . Số bạn nữ nhiều hơn số bạn nam là 6 bạn. Có bao nhiêu bạn nữ trong dàn hợp xướng của trường ? 

một dàn hợp xướng của trường có tổng cộng 72 thành viên. Số bạn nữ nhiều hơn số bạn nam là 6 bạn. Có bao nhiêu bạn nữ trong dàn hợp xướng của trường ?

Lớp tôi có 40 học sinh. Số học sinh khá nhiều hơn số học sinh giỏi là 4 bạn nhưng ít hơn số học sinh trung bình là 8 bạn. Tìm số học sinh mỗi loại. ( Không có học sinh yếu ).

a

Tôi cảm ơn ạ ^^

The number of students of class 5B is:

8 : (9 - 7) × 7 = 28 (students)

The number of students of class 5A is:

8 : (9 - 7) × 9 = 36 (students)

mn ơi mik ko bt xem đáp án ở đâu, mn chỉ mik với

1.the schoolboys have just bought some paint .... their classroom

A.decorating B.to decorate C.tobe decorate D.to have decorated

2.my children are excited about .... football maches on tv

A.watch B.watching C.to watch D.watched

3.children expect ... to water park at the weekend 

A.to take B.to be taken C.taking D.being taken

4.the boy was worried about.... for not doing his homework

A.to punish B.being punished C.punishing D.to be punished

5.Mr smith decided ....a new tv

A.to buy B.buying C.bought D.to be bought

6.the girl was made .... the classroom the whole week

A.clean B.to clean C.cleaning D.to be cleaned

7.my teacher doesn't permit us .... cellphone in class

A.to use B.using C.to be use D.use

8.IT's no use ... his opinion on account of his disinterest

A.asking B.to ask C.ask D.asks

9.the applicants seem... for the job interview carefully last week

A.to prepare B.to have prepared C.preparing D.having prepared

10.she appeared ... someone to drive her home from the party last night

A.has asked B.to ask C.asking D.having asking

11.the thieves admitted ... into the man's house ....a large amount of money

A.having broken / to steal B.to break/ to steal C.breaking/stealing D.to break/has stolen

12.I have always regretted .... harder at lower-secondary school

A.not to study B.not to have studied C.having not studied D.not studying

13.He was the first runner ... the marathon

A.to finish B.having finished C.finishing D.to be finished

14.The police made every computer ....by the traffic regulation

A.to abide B.abiding C.abide D.to have abide

15.he had hopes of ..... for the leading part in the play

A.choosing B.being chosen C.to choose D.to be chosen

16.peter hoped .... to bill's party so that he could make friends with other people

A.inviting B.being invited C.to invite D.to be invited

17.the children enjoyed.... present at chrismas

A.giving B.being given C.to give D.to be given 

18.Joe finally admitted ... For not doing his homework
A.to punished B.being punished C.be punished D.punishing

19.She refused....the information with us
A.sharing B.to share C.to be shared D.share

20......directly at the sun may damage your eyes if you don't wear
A.To look B.looking C.having looked D.looked

21......directly at the sun may damage your eyes if you don't wear
A.To look B.looking C.having looked D.looked