Thebike____hewenttoschoolwasstolenlastweek,whichmadehimfeelsad.
Let's go swimming,_______?
A、willwe
B、dowe
C、don'twe
D、shallwe
Thetimehascome_____wemakeextensiveuseofnuclearenergy.
A、When
B、while
C、as
D、since
We'dbettereliminatejunkfoodsfromourkitchenandkeepavarietyofhigh-qualityfoods_____atalltimes.
A、available
B、desirable
C、enormous
D、numerous
Itisimperativethatyou____hereintime.
A、shallarive
B、mustarrive
C、couldarrive
D、arrive