祈使句第一词是动词,还是动词ING?

问题描述:

祈使句第一词是动词,还是动词ING?
例:___books in bed is bad for your eyes.
是用read还是reading?

祈使句第一词是动词原型,
但你给的不是祈使句,要填reading (books)即动名词作句子的主语.
祈使句例:
Stop reading books in bed,it is bad for your eyes.
其中的Stop即祈使句的“第一词”