A good worker in a key spot could, he kept up production, take all the coffee breaks he wanted, and the bosses would very likely look the other way.
A、aslongasA
暂无解析
Studentsshould（）theirowninterestsaswellasdotheirschoolwork.
Expertshavefoundthatnormalsleepcanbedividedintofive______stages
InAugust1977,asatellitetogatherdataaboutthe10millionblackholeswhicharethoughttobeintheMilkyWay.
Itisessentialthateverythinginadvance.（）
Theteacherrequiredthatallerrorsshouldbe_______eliminatedbeforethestudentsturnintheirtermpaper
