1、You can go to the party with us if you _____.A want to B want to do C want it D want to go为什么不用BD?2、You ought to have called him yesterday.Yes,I know I ______ A ought to B should have 为什么不用A?与第一题相比第一题省略了go这个动词,第二题没有省略have.到底什么时候省什么时候不省?

问题描述:

1、You can go to the party with us if you _____.
A want to B want to do C want it D want to go
为什么不用BD?
2、You ought to have called him yesterday.
Yes,I know I ______
A ought to B should have
为什么不用A?与第一题相比第一题省略了go这个动词,第二题没有省略have.到底什么时候省什么时候不省?

省略的标准是不影响意思的表达,即有些句子成分被省略了,但前后语境,谁都不会产生歧义,这时就可以省略。

呵呵,我语法不好,但是凭语感有时也是很准的,特别是有些固定用法,记住就好了~

第一个答语可以省略动词。第二个ought to等于should。那个have是一个助动词。

不定式就可以省略谓语

1是考察不定式`~B肯定不行啦`~do后面差成分~D也差成分~want to go to the party 就可以~但不定式可以省略后面的~
2考察的是虚拟语气~have不能省的~
考点不一样啊`~