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

A. Ø

B. an

C. the

D. a

Câu 2: It is of great ________ to show your interest and politeness when you are having a job interview.

A. important

B. importance

C. importantly

D. unimportant

Câu 3: It was hot, _________ I turned on the conditioner.

A. however

B. but

C. because

D. so

Câu 4: The view is great, _______?

A. isn't it

B. was it

C. doesn't it

D. did it

Câu 5: Mark hopes _______ a small part in the school play.

A. to get

B. getting

C. get

D. got

Câu 6: If I _______ just one year younger, I would be eligible for the scholarship.

A. am

B. will be

C. would be

D. were