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?
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?
答
should have
答
if表‘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 would tell you.
在这儿，if表“是否”，引导宾语从句，应当遵循主句的时态，用will have。
答
We haven't decided yet if(whether) we will (do sth.) tomorrow.
We haven't decided yet if(whether) we will (have a party) tomorrow.
答
嗯。。。从句中事情发生与否是不是还没确定呢。。。怎么能用将来时= =
应该用would have 用过去将来~~~
答
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.