Câu hỏi: Air pollution, together with littering, are causing many problems in our large, industrial cities today.

A. are

B. industrial

C. problems

D. with

Câu 1: Nowadays, most people rely ________ the mass media as their main source of information.

A. on

B. in

C. to

D. with

Câu 2: I and Kenny______ pen pal friends since I_______ Singapore.

A. are/ visit

B. were/ have visited

C. were/ visited

D. have been/ visited

Câu 3: If you eat too much, you _________ the price by putting on weight.

A. will pay

B. paid

C. would pay

D. were paying

Câu 4: Human beings are ________ greatest threat to survival of endangered species.

A. Ø

B. an

C. the

D. a

Câu 5: It was hot, _________ I turned on the conditioner.

A. however

B. but

C. because

D. so

Câu 6: If ________ access to education, children living in poverty will have a brighter future.

A. providing

B. are provided

C. having provided

D. provided