如题
1.-Why do you look worried?
-Oh,my new watch _.
A.missing B.lose C.missed D.has gone missing
此题重点解释C和D两个选项
2.As you're never been there before,I'll have somebody_the way.
A.to show B.show C.showing D.showed
3.-How many dancing lessons have you taken?
-_.
A.No B.Neither C.None D.No one
4.-Excuse me!
-_?
-How can I get to the nearest post office?
A.Pardon B.What C.Yes D.What's wrong
第2题的答案到底是啥？