Câu hỏi: Mike came across his old friend - Maria while he _______ along the street.

A. had walked

B. would walk

C. was walking

D. walked

Câu 1: Human beings are ________ greatest threat to survival of endangered species.

A. Ø

B. an

C. the

D. a

Câu 2: It was hot, _________ I turned on the conditioner.

A. however

B. but

C. because

D. so

Câu 3: Jane never gives her mother a hand in housework _________ she has a lot of free time.

A. although

B. since

C. in spite of

D. because of

Câu 4: I and Kenny______ pen pal friends since I_______ Singapore.

A. are/ visit

B. were/ have visited

C. were/ visited

D. have been/ visited

Câu 5: Nowadays, most people rely ________ the mass media as their main source of information.

A. on

B. in

C. to

D. with

Câu 6: In an essay writing in 1779, Judith Sargeant Murray promoted the cause of women's education.

A. the cause of

B. writing

C. In an essay

D. women's education