We haven't decided if we'll have a field trip.为么宾语从句的时态不是与主句的时态一样?
来源:百度知道 编辑:UC知道 时间:2024/05/22 01:52:53
当主句为一般现在时或现在完成时的时候,宾语从句可以根据需要选择适当的时态
We haven't decided 是完成时,表示还没有决定
if we'll have a field trip 是将来时,应为 field trip 是在将来,还没发生。
没决定这一点已经完成,但是还没出去玩。
We haven't decided if____.
we haven't got any meat today.
we haven't got any sugar or jam.
We haven't met for too long.
We haven't enough money,that's our trouble跟We haven't got enough money,that's our trouble有分别吗
We haven't enough money,that's our question.翻译
We haven't enough money,that's our question
we haven't got any black shoes fot that size
we haven't got any black shoes for that size
1.We haven't heard from Jane for a long time.What do you suppose_her?