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

A. office

B. official

C. officer

D. officially

Câu 1: It's not worth _____ a tax home.

A. taking

B. to take

C. take

D. took

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

A. to build

B. built

C. building

D. with building

Câu 3: I can't remember the name of the man _____ I gave the money.

A. who

B. whom

C. whose

D. which

Câu 4: I am not used _____ up early.

A. get

B. to get

C. getting

D. to getting

Câu 5: She can't stand _____ her at home all day.

A. seeing

B. see

C. to see

D. saw

Câu 6: I can't help _____ at her mistake.

A. laugh

B. laughing

C. laughed

D. to laugh