_____straight on and you'll see a church.You won't miss it.

问题描述:

_____straight on and you'll see a church.You won't miss it.
_____straight on and you'll see a church.You won't miss it.
A:go B:going C:if you go D:qhen going
为什么不能选C

c的话就不能有and了.
if是连词,and也是连词.一句话怎么能有两个连词呢?