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

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
Xem đáp án
A là đáp án đúng
Lời giải:
concentrate on: tập trung