Hotmetal________asitgrowscooler.
A、contractsWhatarethekeyfeaturesofaresearchpaper?
TheMaboJudgementpassedbyAustralia'sHighCourtinJune1992overturnedtheconceptofterranullius,whichmeans________.
Theprofessoraskedaquestion,andDavid________agoodanswer.
Suchperson_______youdescribeisrarenowadays.
重寫句子:Fossilfuelsarenon-renewable.Weneedtofindalternativeenergysources.(compoundsentence)