【Itissaidthattheearthis()ifhumanbeginsdon’tprotectit.A.inadangerB.indangeroussC.dangerD.indangerPeopleareprotectingwater()pollution.A.forB.byC.againstD.inMr.Smithalwayshas()totellus.A.somegoodpiecesofnewsB.so】

问题描述：

Itissaidthattheearthis()ifhumanbeginsdon’tprotectit.

A.inadangerB.indangeroussC.dangerD.indanger

Peopleareprotectingwater()pollution.

A.forB.byC.againstD.in

Mr.Smithalwayshas()totellus.

A.somegoodpiecesofnewsB.somegoodnewsesC.somegoodpieceofnewsD.somepiecesofgoodnewses

These()areall().

A.boystudent,ChineseB.boysstudents,ChineseC.boysstudents,ChinesesD.boystudents,Chinese

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