18. You had better ____________ teasing these newcomers, for that will hurt their feeling.A) leave out B) leave for C) leave off D) leave behind A: leave out B: leave for C: leave off D: leave behind

When words _____, music begins. A: leave away B: leave off C: leave out D: leave alone

They ____ a tip if the service is poor. A: don’t have to leave B: must no leave C: cannot leave D: do not leave

No one ________________ this building without their permission. (was to leave / is to leave)

--The train __________ (leave) already. --When __________ the train __________ (leave)?

It is no good ______ today's work for tomorrow. A: to leave B: leaving C: that you leave D: leave

No one _____ the building without the permission of the police. A: to leave B: is about to leave C: leaves D: is to leave

You will find it useful after you _______ school. A: leave B: left C: to leave D: will leave

You’d better___ ___ the heavy rain.() A: not<br/>to leave; because B: not<br/>leave; because C: not<br/>to leave; because of D: not<br/>leave; because of

You ______ a tip if you're not satisfied with the service. A: mustn't leave B: must leave C: can leave D: don't have to leave