Câu hỏi: Some of my friends are good at English while other are good at Mathematics.

A. my friends

B. at

C. while

D. other

Câu 1: In today's competitive markets, even small businesses had better to advertise on TV and radio in order to gain a share of the market.

A. today’s

B. to advertise

C. on

D. to gain

Câu 2: If today is Sunday, we would have a lot of fun at the camping site.

A. is

B. would have

C. fun

D. at

Câu 3: The workers are building a new bridge which is 150 meters in high.

A. building

B. a new bridge

C. which

D. high

Câu 4: Mrs. Alien was concerned about me having to drive so far every day.

A. about

B. me having

C. so far

D. every day

Câu 5: Anyone reproducing copyrighted works without permission of the holders of the copyrights are breaking the law.

A. reproducing

B. are

C. breaking

D. the law

Câu 6: Reading several books on that subject, Bill considered himself an expert.

A. Reading

B. books on

C. considered himself

D. expert