He ____ be in the restaurant.His car is just outside it!( )
can
can't
must
mustn't
The mobile phone in 1973.( )
A.inventsB.is invented
C.inventedD.was invented
Lily is my classmate.We each other since she came to our school.( )
A.knowB.knewC.have knownD.will know
My mother some washing when the telephone rang.( )
A.doesB.didC.is doingD.was doing
﹣﹣﹣How do you usually go to school?
﹣﹣﹣I to school on foot.( )
A.goB.wentC.was goingD.will go
﹣﹣﹣ I hand in the report today?
﹣﹣﹣No,you needn't.( )
A.CanB.MustC.ShallD.Could