重写句子：Fossil fuels are non-renewable. We need to find alternative energy sources. (compound sentence)
Fossil fuels are non-renewable, so we need to find alternative energy sources.
暂无解析
Veryfewpeopleunderstoodthiscontract,______wasveryobscure.
重写句子：NotuntilhecrossedthelineandfeltthetapesnapagainsthischestdidJohnsonknowhehadwontherace.(loosesentence)
改写病句：Shakespearewrotecomedies,tragedies,romances,andtheplayswhichwerebasedonhistoricalevents.
重写句子：Hockeyisasportwhichispopularinmanycountriesaroundtheworld.(simplesentence)
Sicknessoften_______eatingtoomuch.
