I believe you must come first in the exam. You always do __________ in our class.
He________dinner at restaurants last year,but now he usually comes back home after work and cooks supper for his family.
To make our school more beautiful,rubbish________into the river. A.can’t throw B.mustn’t be thrown C.needn’t be thrown
—Your classroom is very clean. —Sure.It________after school every day.
—He’s never stolen anything before,________he? —________.It’s his second time to be taken to the police station.
The window________by some kids who were playing ball.