You____himsoclosely;youshouldhavekeptyourdistance.
A、shouldn'tfollowProfessorWang,_______forhisinformativelectures,waswarmlyreceivedbyhisstudents.
Modernscienceandtechnologyhas_____communicationbetweenpeoplefarapart.
_____ofwatermakesDeathValleyadesert,butitisbynomeansdevoid.
Everyonehopesthatwecandosomethingtomakethingsbetter,sowecan'thelp______underthestress.
InfactPeterwouldratherhaveleftforSanFranciscothan____inNewYork.
