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 |
33. -- Mr. Black, this is our language lab. Would you like to go in and have a look?
-- OK..
| A．Help yourself | B．This way, please | C．Follow me | D．After you |
32. -- I didn’t go to the movie last night because of the rain.
-- What a pity! If I had got the ticket, Iit.
| A．wouldn’t have missed | B．wouldn’t miss |
| C．didn’t miss | D．hadn’t missed |
31. -- If you don’t bring a birthday present to Lucy, you may.
-- Thank you for reminding me. Surely I’ll buy her one this evening.
| A．leave her alone | B．let her down | C．hold her back | D．cheer her up |
30. -- Whyyou be talking so loudly while others are studying?
-- I am terribly sorry.
| A．shall | B．must | C．will | D．May |
29. Was it at half past five when we were still sound asleephe got up?
| A．that | B．before | C．when | D．After |