问题描述：
定语从句的问题,关系副词where和介词加which什么时候可以互换,什么时候不能换?
He has lost the key to the drawer____the paper are kept.
a where b in which c under which d which
The train __she was traveling was late .
A where B in which C under which D which
到底应该选哪个,答案要有说服力.
答案c应该是on which
He has lost the key to the drawer____the paper are kept.
a where b in which c under which d which
The train __she was traveling was late .
A where B in which C under which D which
到底应该选哪个,答案要有说服力.
答案c应该是on which
问题解答：
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