______ the blackboard, please. What can you ______?

A. Look; see 　 B. See; look at　 C. Look at; see 　 D. See; see

His red face suggested he _____ angry and I suggested that he_____ at once.
A. should be, should leave   B. was, left     C. was, leave   D. be, left

John Smith,　　 by two companies,is planning to have a third try.

A、being turned down　 B、refused　　 C、having been turned down　　 D、to be refused

Several strong winds may________into a hurricane when the suitable temperature is met.

A．combine B．unite C．mix D．connect

I can spare a few minutes to you ______ you make your explanation as short as possible.

A. as if　　　 　　　 B. as though　　 　　 C. so that　 　　　 D. as long as

---May I take your order now?

　 ---_______.

A. No,I'm in trouble now　　　　　　 B.Yes, we obey orders

C. Yes, I'd like a dish of chicken　　　 D.No, I don't have a choice of meat

We should do more such exercises in the future, I think, _____ those we did yesterday.

A. as　 　 B. like　 C. about D. than