_____enoughtimeandmoney,theresearcherswouldhavebeenabletodiscovermoreinthisfield.
A、GivingC
暂无解析
Heresented_____towait.Heexpectedtheminister_____himatonce.
Toobtainasatisfactoryresult,onemustapplytwo____ofpaintonacleansurface.
Itisimperativethatstudents_____theirtermpapersontime.
_____himtomorrow.
Henoticedthehelicopterhoveringoverthefield.Thentohisastonishment,hesawaropeladder_____outandthreemenclimbingdownit.