Listen! Someone ________ at the door. Please go and answer it.

A. until

B. since

C. if

D. because

A. produce

B. produced

C. are produced

D. was produced

A. can

B. need

C. may

D. should

A. What

B. How

C. What a

D. How a

A. Thank you.

B. That’s fine.

C. Don’t worry.

D. I think it helps.

A. That’s all right.

B. That’s terrible.

C. I don’t think so.

D. I’m afraid not.

A. pleasant; pleased    B. pleased; pleased

C. pleasant; pleasant    D. pleased; pleasant

A. Don’t mention it    B. Never mind

C. Of course not    D. No problem

A. company    B. store

C. office    D. website