Câu hỏi: This school _____ ten years ago.

A. be built

B. is built

C. was built

D. built

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

A. to fly

B. flying

C. be flying

D. fly

Câu 3: He went to a seaside resort because he was keen on _____.

A. windsurf

B. windsurfing

C. to windsurf

D. to windsurfing

Câu 4: He used _____ next to me in class.

A. to sit

B. sit

C. to sitting

D. to sat

Câu 5: There is a _____ difference between the north and the south.

A. region

B. regional

C. regionally

D. regioner

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

A. laugh

B. laughing

C. laughed

D. to laugh