I wonder if he_______ to our party tonight.……

问题描述:

I wonder if he_______ to our party tonight.……
I wonder if he_______ to our party tonight.
I believe if he_______his homework,he will join us.
A、will come; will finish
B、 will come;finishes
C、comes;finishes
D、comes; will finishes

B为什么?第一句if引导的是宾语从句,有tonight,时态为将来时第二句中if 引导的是条件状语从句,主将从现宾语从句的时态是与后边一致的吗?如果主句是一般现在时,宾语从句的时态看他的时间状语决定