求教verbal一题，to do 能否做主语？还有对官方解释的不明白，在线等，急急急

kiwifoodtown

TO DO做为非谓语中的不定式，是可以充当除谓语外的任何成分的。举些例子吧：
1作主语（放在句首）
To err is human;to forgive is divine.
           （放在句尾）
It is important to inforce law. It is important to hold people accountable for their actions.

2作宾语
I hope to see you again
This company refused to cooperate with us.

3作宾补
They don't allow people to smoke in the theater.

4作定语
I have a letter to write.
She has four children to take care of.

5作状语
Hating people is like burning your own house to get rid of a rat.

6作独立成分
To begin with, on behalf of all of your American guests, I wish to thank you for the incomparable hospitality.
To make a long story short, he is in hospital now.

类似例句很多，也希望各位同学不要死钻偏难题目，缺忽略了些正常的英语表达方式。