Câu hỏi: It was not until 1990 when she became a teacher.

A. was

B. until 

C. when

D. became 

Câu 1: How many films are _______ VTV3 tonight?

A. on

B. out

C. of

D. off

Câu 2: Mai: “How long are you going to study this subject?”

A. For a month

B. In December

C. This semester

D. Since September

Câu 3: Ho Chi Minh City is _______ than the capital.

A. big

B. small

C. bigger

D. the biggest

Câu 4: Give me the book ______ is on the table.

A. who

B. which

C. that

D. B or D

Câu 5: Which underlined part is not correct?

A. A

B. has built

C. these

D. engineers

Câu 6: _________ his homework yet?

A. Did he finish

B. Has he finished

C. Was he finishing

D. Will he finish