people must_____(follow) the rulestwice用社么提问是how long吗
问题描述:
people must_____(follow) the rules
twice用社么提问
是how long吗
答
答案是follow~~
must后+上动词的原型~~无论是什么时态,因为must是情态动词~~
答
follow
must+动词原型
意思是人们要遵守法则
错,twice是次数要用how often提问