求助几道新概念英语2的题（第5—6课的）

求助几道新概念英语2的题（第5—6课的）
1.Miss Wu has taught in the school ( ).
A.For ten years B.ten years ago C.since ten years
2.I have a book in one hand and a bag in ( )
A.another B.the other C.other
3.I want one more mooncake.（one more下面划线）
A.other B.the other C.another
4.Why not ( ) help when you are in trouble?
A.ask B.asked C.ask for
5.There are a lot of sheep on the hill.(a lot of下面划线)
A.many B.much C.some
6.There are many trees on ( ) side of the street now.
A.all B.both C.each
7.She isn't at the cinema now because she ( ) the library.
A.has been to B.has gone to C.went to
填空：
1.Where's Tom?He's left a ( )(口信) saying that he has something important to do.
2.Please ( )(覆盖) the table with a piece of cloth.
就是以上这些题,请简单写出原因,