Câu hỏi: Endangered species are plant and animal species which are ________ danger of extinction.

A. on

B. in

C. at

D. by

Câu 1: She has been living in the country________ the beginning of the summer.

A. for

B. at

C. during

D. since

Câu 2: He was happy because his poems had been translated ________several languages.

A. into

B. for

C. over

D. about

Câu 3: The flood was responsible __________ damaging the crop.

A. of

B. with

C. about

D. for

Câu 4: I posted the letter today, so they should receive it .............Monday.

A. in

B. at

C. by

D. for

Câu 5: Are you aware ________the time?

A. with

B. of

C. at

D. about

Câu 6: You should concentrate _________what the interviewer is saying and make a real effort to answer all the questions the interviewer asks.

A. on

B. in

C. at

D. to