﹣﹣﹣Don't make noise in class!
﹣﹣﹣ .( )
A.Sorry, I won't do it again
B.Of course, I will
C.That's OK
D.Excuse me, I'm wrong
Who is (敲)at the door?
Maybe it's the postman.
I can't hear you (清楚地). Please speak a little bit louder.
I met a friend of (她的)in the street yesterday.
Drinking too much juice can be (有害的) to people's teeth.
The use of new energy cars helps to reduce air (污染).