Câu hỏi: She had worked as a tourist guide before __________ a teaching career.

A. starting

B. start

C. to start

D. started

Câu 1: Mark prefers cycling ________ driving

A. than

B. for

C. to

D. as

Câu 2: He sometimes ____________ sports with friends.

A. play

B. plays

C. played

D. playing

Câu 3: We _________ some food to tomorrow’s party.

A. are bringing

B. bring

C. brought

D. would bring

Câu 4: The books ___________ have been read by the students should be put on the shelf.

A. who

B. whose

C. that

D. what

Câu 5: Nylon ______________ in the 1930s

A. invented

B. was invented

C. is invented

D. has been invented

Câu 6: What _________ computer a miraculous device?

A. makes

B. make

C. making

D. to make