What you need to do is to deal with new words in different ways

题目

What you need to do is to deal with new words in different ways
deal前面为什么要有to?
具体是怎么回事？

答案

to deal with new words in different ways中的to可是省略.因为在英语中,动词不定式作表语时,如果主语部分含有动词do（任何形式）的话,动词不定式符号常常省略.比如：What you have to do now is (to)clean the clas...