InAugust1977,asatellitetogatherdataaboutthe10millionblackholeswhicharethoughttobeintheMilkyWay.
A、launchedB
暂无解析
Everyboyandgirl___(treat)inthesameway.
Iwouldratheryou__(come)tomorrow.
Ourmost________(success)productisbasedonaverysimpleidea
Agoodworkerinakeyspotcould,hekeptupproduction,takeallthecoffeebreakshewanted,andthebosseswouldverylikelylooktheotherway.
_______(safe)needstobeimprovedontherailwaysinthatcountry
