.Don’t take too much of the medicine; it does you more harm than good if you ___

题型：不详难度：来源：

.Don’t take too much of the medicine; it does you more harm than good if you ____.

A．do

B．take

C．like

D．have

答案

A

解析

if you do是省略形式，为了避免重复，常用助动词代替谓语动词。do代替上文中的take too much of the medicine。have用于代替上文中的现在完成时。