There are 56 students in each class _______ average. [ ]A. on B. at C. of D.

题型：期中题难度：来源：

There are 56 students in each class _______ average.

[ ]

A. on
B. at
C. of
D. from

答案

举一反三

The mother is very worried ________ her lost kid.

[ ]

A. with
B. about
C. on
D. in

题型：期中题难度：| 查看答案

We should often keep _____ touch with each other, because we are good friends.

[ ]

A. on
B. to
C. in
D. up

题型：河南省期末题难度：| 查看答案

Thanks ____ the Great Green Wall, the land produces more crops.

[ ]

A. by
B. of
C. for
D. to

题型：期中题难度：| 查看答案

Before 2003, there was no direct airline ____ Taiwan and the mainland.

[ ]

A. along
B. in
C. between
D. at

题型：期中题难度：| 查看答案

It"s very difficult to see ____ the window because the glass is very dirty.

[ ]

A. through
B. across
C. over
D. at

题型：期末题难度：| 查看答案