nderlinedword“they”referto?Itrefersto_________________.75.Whatdoesthepassagemainlytalkabout?It'smainlyaboutwhatcausesthecrocodilesinAustraliato___________________.Ⅸ补全对话(共10小题,计10分)(A)根据对话内容,将方框内符合对话情境的句子抄写在对话空白处,使对话恢复完整。选项中有两项是多余的。A:Hi,LiuWei.ing.76.______________B:Yes.IamgoingtoanEnglishSummerCamp.A:Great.Whatwillyoudothere?B:77.__________We'llhaveEnglishdebates,actEnglishplaysandtalkwithforeigners.A:Soundsinteresting.78.________________.B:ItwillbeinPekingUniversity.A:OhmyGod.Mydreamistostudythereafterhighschool.B:Thenitwillbeagoodchanceforyoutolearnaboutthisuniversity.79.________________A:Yes,I'dliketo.ButhowcanIbeamemberofthecamp?B:YouneedtophoneMr.Zhang.Hisnumberis88998876.Hecantellyoumore.A:OK,thankyou.80.B:Me,too.Wearesuretohaveagoodtime.Therewillbemanyactivities.Whatareyougoingtodo?