—I cannot find Tom anywhere.—He ______have been off long. I heard him make a call just now.

[单选题]G．uest: I must be off now. I have an appointment at six.H．ost: Well, in that case I won't keep you then. ______.

[单选题]---- Sorry, I have to ______ now. It’s time for class.---- OK, I’ll call back later.A． hang up B. break up C. give up D. hold up

[单选题]---- Sorry, I have to ( )now. It’s time for class.---- OK, I’ll call back later.A． hang upB． break upC． give upD． hold up

[单选题]I have nothing to do, so I'm _____ now.A.fullB.busyC.freeD.fine

[单选题]My friend _____ me. I have to leave now.A． waits for B. waited for C. is waiting for D. was waiting for

[单选题]I have heard both teachers and students______ well of him.A.to speakB.spoke

[单选题]Marilyn, I'm afraid I have to be leaving now. ____________.A.That sounds wo

[单选题]You know, I have three kids now. ______.A.Oh, I've heard a lot about you.B.

[单选题](C)“Get your hands off me, I have been stolen,” the laptop, a portable computer, shouted. That is a new solution to laptop computer theft: a program that lets owners give their property a voice when it has been taken.The program allows users to displ

[单选题]______ have I heard anything like that in my life.A． OnlyB． SurprisinglyC． NeverD． However