Câu hỏi: Chris is…………………than his brother.

A. short

B. shortest

C. the shortest

D. shorter

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

A. quick

B. quickly

C. quicken

D. quickened

Câu 2: Today is………………..day we have had all week.

A. colder than 

B. the coldest

C. colder

D. coldest

Câu 3: These are very .................... chairs.

A. comfort

B. comfortably

C. comfortable

D. comforts

Câu 4: Kathleen was the only student………………..the test.

A. falls

B. is failing

C. failed

D. to fail

Câu 5: I play checkers sometimes, but I think chess is…………………

A. an interesting

B. more interesting

C. more interesting than

D. interestingly

Câu 6: American spends more money on fast food .................... country in the world.

A. while other

B. than any other  

C. than other

D. other than