Question

she asked you when( )again?

Tell her that I'll let her know when he( )
A.he came ,comes B.would he come ,will come C.he came, will come D.he would come , comes

Answer 1

选 D
第一个 when 引导宾语从句，主句是一般过去时，从句用过去将来
第二个when 引导时间状语从句，主句用一般将来时，从句用一般现在时
句意是：她问你他将什么时候再来。告诉她当他来的时候，我会让她知道的。

Answer 2

选D。第一个空是过去将来时，第二个空是“当他来的时候”，是一般现在时。

Answer 3

D.he would come , comes 就是楼上两位解释的