Câu hỏi: The people………………….this office are very helpful.

A. In

B. work

C. are working

D. work in

Câu 1: Steve ate his dinner .................. 

A. quick

B. quickly

C. quicken

D. quickened

Câu 2: The price of his car is ....................... that of my car.

A. twice as much than

B. as twice as

C. twice as much as

D. more twice than

Câu 3: You should wear this dress because it’s……………..that one.

A. elegant

B. the most elegant

C. more elegant than

D. the elegant

Câu 4: Today is………………..day we have had all week.

A. colder than 

B. the coldest

C. colder

D. coldest

Câu 5: Biology is…………………..of all my classes this semester.

A. the hardest

B. harder

C. hardly

D. harder than

Câu 6: I play checkers sometimes, but I think chess is…………………

A. an interesting

B. more interesting

C. more interesting than

D. interestingly