Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following question.

You will have to ______ your holiday if you are too ill to travel.

A. put aside

B. call off     

C. back out  

D. cut down

Read the following passage and mark the letter A, B, C or D on your sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 36 to 46

I was with Overseas Volunteers (OV) for a year after leaving university, and I was sent to an isolated village in Chad, about 500 kilometres from the capital N’Djamena. Coming from a (36)______country, I got quite a shock, as conditions were much harder than I had ( 37) ______. But after a few days I soon got used to (38) ______there. The people were very friendly and helpful, and I soon began to appreciate how beautiful the countryside was.

One of my job was to supply the village with water. The well was a long walk (39) _____, and the women used to spend a long time every day ( 40)_______heavy pots backwards and forwards. So I contacted the organization and arranged to (41 ) _____some pipes delivered. We built a simple pipeline and a pump, and it worked first time. It wasn’t perfect there were a few (42) _____but it made a great difference to the villagers, (43 )______had never had running water before. And not (44 ) ____did we have running water, but in the evenings it was hot, because the pipe had been (45) ____ in the sun all day.

All in all, I think my time with OV was a good experience. I would recommend it to anyone who was planning to work for a charity

Điền vào ô 37

A. felt

B. planned

C. found

D. expected

đặt A= vế trái

nhân phá ngoặc A ta đc:

A=1+x/y+x/z+y/x+1+y/z+z/x+z/y+1

=3+(x/y+y/x)+(x/z+z/x)+(y/z+z/y)

áp dụng BĐT:a/b+b/a>=2

=>A>=3+2+2+2=9

vậy...

Trong quá trình phân bào, cơ chế tác động của côsixin là:

A. Làm cho tế bào to hơn bình thường

B. Cản trở sự hình thành thoi vô sắc

C. Làm cho bộ NST tăng lên

D. Cản trở sự phân chia của tế bào

Mark the letter A, B, C, or D to indicate the sentence that best completes each of the following exchanges.

Lan: “What can government do to punish factories that violate environmental law?”

Nam: “_________.”

A. So many of them are polluting the environment. 

B. Yes, I think a big fine would be relevant. 

C. They may force those factories to close down. 

D. There are no factories in this region.

Láo,mất nết
Tao dg định hỏi thì m hỏi rồi:V