Câu hỏi: Mike came across his old friend - Maria while he _______ along the street.

A. had walked

B. would walk

C. was walking

D. walked

Câu 1: I was really impressed ………………….the beauty of Dubai.

A. on

B. in

C. to

D. by

Câu 2: He is very keen______ English, but he is not good ______ listening.

A. on/ at

B. on/ in

C. at/ on

D. at/ at

Câu 3: The first color TV _____________ in 1928.

A. produce

B. is produced

C. was produced

D. produced

Câu 4: It is of great ________ to show your interest and politeness when you are having a job interview.

A. important

B. importance

C. importantly

D. unimportant

Câu 5: Air pollution, together with littering, are causing many problems in our large, industrial cities today.

A. are

B. industrial

C. problems

D. with

Câu 6: They_________ Ho Chi Minh City last summer.

A. visit

B. will visit

C. have visit

D. visited