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

A. the hardest

B. harder

C. hardly

D. harder than

Câu 1: The people………………….this office are very helpful.

A. In

B. work

C. are working

D. work in

Câu 2: Steve ate his dinner .................. 

A. quick

B. quickly

C. quicken

D. quickened

Câu 3: I’ve tried all the desserts at this restaurant, but this one is………………of them all

A. delicious

B. the most delicious

C. most delicious

D. more delicious

Câu 4: Elizabeth sounded ................. on the telephone last night.

A. happens

B. happening

C. happy

D. happily

Câu 5: Listening to music is…………………..dancing.

A. relaxing than

B. the most relaxing

C. relaxing

D. more relaxing than

Câu 6: 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