Câu hỏi: I can't help _____ at her mistake.

A. laugh

B. laughing

C. laughed

D. to laugh

Câu 1: English is the _____ language on one- fifth of the land area of the world.

A. office

B. official

C. officer

D. officially

Câu 2: Would you like _____ to my party?

A. come

B. to come

C. coming

D. came

Câu 3: There is a _____ difference between the north and the south.

A. region

B. regional

C. regionally

D. regioner

Câu 4: He looked at me_____.

A. angry

B. angrily

C. anger

D. angryly

Câu 5: I am not used _____ up early.

A. get

B. to get

C. getting

D. to getting

Câu 6: He couldn't stand _____ for her so long.

A. to wait

B. waiting

C. wait

D. waited