无牙颌功能分区的缓冲区不包括（）
A.切牙乳突
B.上颌硬区
C.下颌隆突
D.颧突
E.颊棚区
参考答案：E
Everyone in the room ____________ quiet.[ ]
A. are
B. is
下列各句中均有一处错误，请指出并改正。
1. Quite a lot of housework were given to us last weekend. ___________
2. Newspapers read every day at home, in offices and on trains. ___________
3. Radio is listened by millions of people every day. ___________
4. An English speech will give to the children tomorrow. ___________
5. I have a lot of chores to be done today. ___________
