一个美国的课程中听到what she does is create for her students,为什么is后用了原形
问题描述：
一个美国的课程中听到what she does is create for her students,为什么is后用了原形
答
这个句子本应该使用is to create for her student.由于前面使用了what she does,所以后面就可以省to.再比如what you have to do is eat two oranges each time.