___________,follow the directions on the bottle carefullyA:when taken drugs B:when drugs takenC:when one takes drugsD:when taking drugs
问题描述:
___________,follow the directions on the bottle carefully
A:when taken drugs
B:when drugs taken
C:when one takes drugs
D:when taking drugs
答
选D
主语是省略了you的祈使句
主句主语you和take drug的关系是主动的关系
:when taking drugs=when you take drugs