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

A. however

B. but

C. because

D. so

Câu 1: If ________ access to education, children living in poverty will have a brighter future.

A. providing

B. are provided

C. having provided

D. provided

Câu 2: Air pollution, together with littering, are causing many problems in our large, industrial cities today.

A. are

B. industrial

C. problems

D. with

Câu 3: Human beings are ________ greatest threat to survival of endangered species.

A. Ø

B. an

C. the

D. a

Câu 4: Mark hopes _______ a small part in the school play.

A. to get

B. getting

C. get

D. got

Câu 5: He is very keen______ English, but he is not good ______ listening.

A. on/ at

B. on/ in

C. at/ on

D. at/ at

Câu 6: Before becoming successful, Charles Kettering, former vice president of General Motors, was so poor that he has to use the hayloft of a barn as a laboratory.

A. as

B. so poor

C. has to

D. successful