I have had great deal of trouble keeping up with the rest of students .这句用的是什么语法?
问题描述：
I have had great deal of trouble keeping up with the rest of students .这句用的是什么语法?
答
首先句中有个小错误，应该是a great deal of
本句的句型结构为 have trouble (in) doing sth
keep up with sb 为固定搭配，表示"跟上，赶上"
此句的意思是：要赶上其他同学，对于我有很大麻烦。
答
keeping up with等于which keeps up
动名词代替从句引导词
答
整个句子最重要的是谓语短语 have trouble doing sth.在做某事上有困难
现在的句子是它的现在完成时
great deal of用来修饰trouble,keeping up with...指doing sth.