Words
have to
意为“不得不,很勉强”。后接动词原形。
eg:Bob can not come out to play, because he has to help Dad. 鲍勃不能出来玩,因为他不得不帮助父亲。
小练习:( )She____go to bed. Because she will get up early tomorrow. A. have to B. has to C.must
B