Câu hỏi: It's not worth _____ a tax home.

A. taking

B. to take

C. take

D. took

Câu 1: I can't help _____ at her mistake.

A. laugh

B. laughing

C. laughed

D. to laugh

Câu 2: English is the _____ language on one- fifth of the land area of the world.

A. office

B. official

C. officer

D. officially

Câu 3: He couldn't stand _____ for her so long.

A. to wait

B. waiting

C. wait

D. waited

Câu 4: They are looking forward _____ Tet holiday.

A. to have

B. having

C. to having

D. have

Câu 5: Are you interested in _____ football.

A. play

B. to play

C. playing

D. played

Câu 6: He couldn't go far because he was afraid of _____

A. to fly

B. flying

C. be flying

D. fly