if和whether I don't know ____ she will go tomorrow .____ she goes ,I ' ll tell you .

问题描述:

if和whether I don't know ____ she will go tomorrow .____ she goes ,I ' ll tell you .
I don't know ____ she will go tomorrow .____ she goes ,I ' ll tell you .
A.if ,Whether B.whether ,Whether C.if ,That D.if ,If
if和whether如何区别,这道题如何分析,请详解,

D. if , If
第一个空 whether 和if 都可以,第二个空只能用if后面引导的是条件句,如果.....我将.....,这种句型必须用if, 在这里 if 不是“是否”的意思,而是 “如果”的意思 。