Many workers were organized to clear away remained of the World Trade Center.
A、thoseB
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_____ofwatermakesDeathValleyadesert,butitisbynomeansdevoid.
Manypeopleattendvariouspubliclectures,chiefly______themselvesfamiliarwiththelatestdevelopmentofdifferentfields.
______whichwaytotake,thelittleboybehavedlikearealgentlemanwhocomfortedhissisterfromtimetotime.
Theprofessorcouldhardlyfindsufficientgrounds_____hisargumentsinfavorofthenewtheory.
Modernscienceandtechnologyhas_____communicationbetweenpeoplefarapart.
