He must ( ) the traffic rules.括号里填“知道”这个意思,该用那个形式?know还是knows.
问题描述:
He must ( ) the traffic rules.括号里填“知道”这个意思,该用那个形式?know还是knows.
答
must为情态动词,后面加动词原形,故应用know
He must ( ) the traffic rules.括号里填“知道”这个意思,该用那个形式?know还是knows.
must为情态动词,后面加动词原形,故应用know