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

A. are/ visit

B. were/ have visited

C. were/ visited

D. have been/ visited

Câu 1: Mark hopes _______ a small part in the school play.

A. to get

B. getting

C. get

D. got

Câu 2: Human beings are ________ greatest threat to survival of endangered species.

A. Ø

B. an

C. the

D. a

Câu 3: Air pollution, together with littering, are causing many problems in our large, industrial cities today.

A. are

B. industrial

C. problems

D. with

Câu 4: Josh would never forget ________ by his parent through no fault of his own.

A. having scold

B. to have scolded

C. to be scolded

D.  being scolded

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

A. however

B. but

C. because

D. so

Câu 6: I was really impressed ………………….the beauty of Dubai.

A. on

B. in

C. to

D. by