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

A. the hardest

B. harder

C. hardly

D. harder than

Câu 1: This jacket is ....................... the others we've just seen.

A. far most expensive

B. father more expensive than

C. further more expensive

D. far more expensive

Câu 2: I like that sofa, but this one is………………

A. cheaper

B. cheaper than

C. cheaply

D. cheapen

Câu 3: American spends more money on fast food .................... country in the world.

A. while other

B. than any other  

C. than other

D. other than

Câu 4: We met several .................... people at the party.

A. interestingly

B. Interest

C. Interesting

D. interests

Câu 5: Choose the one word or phrase that best completes the sentence.

A. old

B. older

C. the oldest

D. oldest

Câu 6: Bill ordered two .....................  pizzas.

A. large

B. largeness

C. largely

D. largest