We rushed to the football court, only to see a sign ________ into the ground reading PERIODIC MAINTENANCE （定期维修）.
| A．knocked | B．knocking | C．to be knocked | D．being knocked |
．--- Do you mind my smoking here?
--- ________. Look at the sign! It says, “No smoking”!
| A．Never mind. | B．Of course not |
| C．You’d better not. | D．No, I don’t |
--- I called you last night, but nobody answered.
--- Oh, I usually__________off my cell phone by 8:00 pm.
| A．switched | B．have switched | C．switch | D．had switched |
．--- Jack is really a brave guy.
--- So he is. And we can’t admire his courage ____________.
| A．too much | B．a lot | C．very much | D．a little |
．________boys and girls in that school are almost equal, of which both of the headmasters are proud.
| A．A number of | B．The numbers of | C．Numbers of | D．The number of |
．When I moved to a new community, I found it different from -----------I had stayed in before.
| A．one | B．that | C．it | D．the one |