—I’m sorry, but the manager isn’t here yet. Shall I have him call you when he comes back?
—No, I’ll call him later. If I call again in half an hour, do you think he ____?

---Shall I sit at this end of the boat, or that end?

         ---You may sit at ___ end if you keep still.

          A.any      B.both      C. each       D.either

9. — Shall I go and buy two more bottles of beer?

— No, I’ve already bought twenty. That _____ be enough for us two.

A. can    B. may     C. ought to    D. might

—Shall I go over to chat with you this evening?
—Nice of you! It is       great comfort to keep me         company, when I’m alone at home．

—Mom, Tom asked me to play football with him. Shall I go out now?

—______. Be careful and don’t play in the street.

A. Yes,you will  B. With pleasure   C. Of course not   D. Sure