问题补充：
the instructions on the packet when you take the drug and it, I think ,will work soon.
A. Follow
B. To follow
C. Following
D. Followed
答案：
(答案→)A. Follow
B. To follow
C. Following
D. Followed
解析：考查固定句型：句意：当吃药的时候，按照包装上的说明，我想会很快奏效的。使用“祈使句+and/or+简单句”这个句型，选A。
