1.While ________ for the bus at the bus station, I met an old friend of mine whom I haven't seen for 10 years.
C. having waited
2.— Must I take a taxi?
— No, you _______. You can take my car.
A.had better to
D.don’t have to
3.Would you let _______ to the park with my classmate, Mum?
4.—Could I speak to Don Watkins, please?
B.Oh, how are you?
—He teaches physics in a school.
A.What does your father want to do?
B.Who is your father?
C.What is your father?
D.Where is your father now?
6.—I didn’t mean to do that. Please forgive me.
A.Not too bad.
B.That’s all right.
C.It’s a pleasure.
7.This room ______ cool in summer and warm in winter. It's quite comfortable to live here.
8.It’s bad _______ for you to smoke in the public places where smoking is not allowed.
9.—Well done, Jim. You did very well in the high jump.
A.I'm glad to hear that
B. That's right
D.The same to you
10._______ her and then try to copy what she does.
11.She wonders ____ will happen to her private life in the future.
12.—May I use my credit card here?
B.No one use it.
C.I am afraid you can’t.
D.Who told you?
13.Many people watched the boys ______the mountain at that time.
— Would you mind changing seats with me?
A.Yes, you can.
B.Of course, I like to.
C.No, I don’t mind.
D.Certainly, please do.
15. —Ben, would you like to play football with us?
—______, but I have to wash the dishes first.
A.No, I can't
B.I don't want to
D. I'd love to
16.—Peter, don't step on the grass.
A.It doesn't matter
B.I can't do it
D.Sorry, I won't do it again
17. —May I take your order now?
A. No, I'm in trouble now.
B.Yes, we take orders.
C.Yes, I'd like a dish of chicken.
D.No, I don't have an order.
18.People at the party worried about him, because no one was aware _______ he had gone.
B.of the place where
19._______ he saw his mother in person did he apologized.
C. Only when
20.The students were all entertained in a Mexican restaurant, at Professor Brian’s ______.