when _____again?I don't know.but when she_____,I'll let you know.A.she comes,comes B.will she come,will comeC .she comes,will come D .will she come,comes为什么？
问题描述：
when _____again?I don't know.but when she_____,I'll let you know.
A.she comes,comes B.will she come,will come
C .she comes,will come D .will she come,comes
为什么？
答
D问句是问的将来时，回答的时候就用一般将来时
答
i don't know when she (will return )(return），but when she (returns )(return),i (will let )(let)you know we ( will send )(send
答
When will she come again? I don't know, but when she comes, I'll let you know.
答
D
答
D
她什么时候再来、说明说还没来,用将来时
when she comes 是条件从句,用一般时表将来
答
D
前半句为特殊疑问句，一般结构为：特殊疑问词+一般疑问句
后半句一般现在时表将来