怎样才算大门冲墙角:be clever at/in 等区别是？

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题目是这样的：
He is clever _________ typing.
A. for B. in C. on D. at

答案是C
请亲具体说说他们的区别

只听说过be clever at，是擅长的意思，还没见过be clever on，答案错了。

in

答案应该是D 根本没有和in搭配的用法

be clever at=be good at 擅长于

be clever at/in 等区别是？ be located (on/in/at) come in,clever persons. be good at与dowell in的区别 be bad in还是 be bad for还是 be bad at write at least 50 words about ”i'll possibly be a/an ... in 10 years" be expert at 和be expert in 在用法上有啥区别 If you are clever,come in!!!!!!! He may be in the classroom at this moment.(改成同意句) The committee________(divide)in opinion as to whether the matter should be dealt with at once.