Eg：I hope you can join us in the game.
Find out / point out / figure out / turn out/ figure out
Eg：Can you figure out what the poet really means in this poem?
Make sure / make up one’s mind / keep in mind
Eg：we should keep in mind that sports can be a great boost to our health.
(2) it 作形式宾语代替宾语从句
第一类动词： find/ feel/ think/ consider/ make / believe/ guess/ suppose /assume等后面有宾语不足语时，需要用it 作形式宾语而将that引导的真正的宾语从句后置。
Eg：I think it necessary that we do some sporting.
第二类动词： 带宾语从句时需要在从句前面加it。这类词：hate / like/ dislike/ appreciate/ depend on/ see to /
Eg: I hate it when they talk without considering other’s feeling.
但是如果宾语从句是WH-类引导的，其后面有to be 短语作宾语补足语，不可以用it 代替。
We all consider what you said to be unbelievable. (right)
We all consider it to be unbelievable what you said .(wrong)
Adj: sure / certain/ glad/ pleased/ happy / afraid / sorry 等等。
Eg：I am not sure whether you will come or not.
Eg：I could not understand why you refused this good opportunity.
(2) 宾语从句引导词that 的省略问题
Eg：Our parents tell us that we should be honest and that we need learn how to share our feelings with others and that we must know how to learn from others.
Eg：lily told me that she would not come to school tomorrow.
c. 有it 作形式宾语
Eg：we all consider it important that children need enough sleep.
2 谓语动词是think/ believe / suppose/ imagine/ guess / expect
Eg: I don’t believe that you are a good guy.
Eg：I know that you did not finish your homework yesterday.
Eg：he told me that he had been to America .
Eg：My mother once told me that the sun rises in the east and sets in the west.
建议 suggest 、advise、propose；