—Tomissoworriedaboutthetestthathesaidhewasgoingtostudy...

问题详情：

 —Tom is so worried about the test that he said he was going to study all night.

 —Tell him he should quit ______ and get some help.

     A. to have worried    B. to worry       C. worrying         D. from worrying

【回答】

C  quit doing sth. 相当于stop doing sth.，表“停止做某事”之意。

知识点：非谓语动词

题型：选择题