问题

I am afraid he’s more of a talker than a doer, which is ________ he never finishes anything.(2011·山东)
A:that
B:when
C:where
D:why
B:when
C:where
D:why
正确答案是:
同类题型
____ was Jane that I saw in the library this morning.
I have some tickets for the 9th horticultural exposition(园博会). I wonder .
It’s a Clean-Up Day tomorrow. Let’s help _________ signs.
.You should take __________ measures to avoid danger when doing exercise.
Would you like to climb the hill with us tomorrow— If it , I .