用括号内所给动词的适当形式填空，并将答案写在答题卡标有题号的横线上。小题1:Manygreatchanges____________(take)placeinChinaduringthepast10years.小题2:Weshouldthinkaboutallwecando____________

　　用括号内所给动词的适当形式填空，并将答案写在答题卡标有题号的横线上。

　　小题1:Manygreatchanges____________(take)placeinChinaduringthepast10years.

　　小题2:Weshouldthinkaboutallwecando____________(prevent)animalsandplantsfrombecomingendangered.

　　小题3:Today,toholdtheOlympicGames______________(consider)asarichprizeforacountry.

　　小题4:Theengineers____________(search)forsomeinformationontheInternetinthelaboratorywhenMr.Whitearrived.

　　小题5:JackandSusan____________(know)eachothersincetheywerechildren,sonobodywassurprisedtohearthattheygotmarried.

　　小题6:Hepromisedthathe___________(notforget)tohandinhisreportbeforeweekend.

　　小题7:Thepatientjumpedexcitedlywhenheheardhisillnesscould______________(cure).

　　小题8:Weshouldtryoutbesttostopthosefactories____________(pollute)theriversagain.