We haven't decided yet if we( )a party tomorrow.括号中用will have可以吗?

问题描述:

We haven't decided yet if we( )a party tomorrow.括号中用will have可以吗?
请说详细点,为什么可以或不可以,不可以应填have吗?将来时为什么不行?

区分好IF 是引导什么从句,在这儿是‘是否’引导宾语从句,所以根据句意‘TOMORROW’明天,还没有发生,故用一般将来时will have
如果是‘如果’引导条件状语从句,比较下列句子:
I don't know if(是否) he will come tomorrow, if(如果) he comes, I will tell you.