Câu hỏi: He used _____ next to me in class.

A. to sit

B. sit

C. to sitting

D. to sat

Câu 1: He couldn't stand _____ for her so long.

A. to wait

B. waiting

C. wait

D. waited

Câu 2: We spent half a year _____ this hotel.

A. to build

B. built

C. building

D. with building

Câu 3: English is the _____ language on one- fifth of the land area of the world.

A. office

B. official

C. officer

D. officially

Câu 4: Would you like _____ to my party?

A. come

B. to come

C. coming

D. came

Câu 5: I can't remember the name of the man _____ I gave the money.

A. who

B. whom

C. whose

D. which

Câu 6: Are you interested in _____ football.

A. play

B. to play

C. playing

D. played