摘要：436] Follow the directions on the bottle carefully when . [译文] 当你吃药的时候一定要按照药瓶上的说明服用. A. you will take the medicine B. taking the medicine C. to take the medicine D. taken the medicine [答案及简析] B. 前面是祈使句.后面的taking 这个动作由省略了的主语发出来.

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