I don't know if he __tomorrow.if he ___piease let me know.A.comes_其他解答

I don't know if he __tomorrow.if he ___piease let me know.
A.comes,comes B.will come,comes
C.will come,will come
why?

人气：273 ℃　时间：2020-03-24 22:42:49

解答

B
前者if在宾语从句中,后面句子的时态随前面的主句变
后者是if引导的条件状语从句,主句用将来时（祈使句除外）,从句用现在时