重写句子：Fossilfuelsarenon-renewable.Weneedtofindalternativeenergysources.(compoundsentence)
Fossil fuels are non-renewable, so we need to find alternative energy sources.
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Veryfewpeopleunderstoodthiscontract,______wasveryobscure.
Sicknessoften_______eatingtoomuch.
重写句子：Hockeyisasportwhichispopularinmanycountriesaroundtheworld.(simplesentence)
重写句子：Whenwearerelievedofworkingpressuresoftheoffice,wecanenjoyhappinessandrelaxationathome.(modifyingphrase)
重写句子：Fossilfuelsarenon-renewable.Weneedtofindalternativeenergysources.(compoundsentence)
