【一些英语问题,最好解释清楚一些!1.Hewasatthebarber’sw____wewereorganizingagamefortheclassparty.[while]2.Nooneknowswhothem____the15-year-oldgirl.[modern]3.WhileI____home,Isawanalienunderatree.[wasgoing]4.He】

　　一些英语问题,最好解释清楚一些!

　　1.Hewasatthebarber’sw____wewereorganizingagamefortheclassparty.[while]

　　2.Nooneknowswhothem____the15-year-oldgirl.[modern]

　　3.WhileI____home,Isawanalienunderatree.[wasgoing]

　　4.He____readorwritefiveyearsago.[couldn’t]

　　5.当不明飞行物降落在街上时,他们正在等公共汽车.

　　They________forabuswhentheUFO________thestreet.[werewaitingfelldown]

　　6.I____topostthatletter.I’llgotothepostofficerightnow.[C]

　　A.rememberedB.hadC.forgotD.wanted

　　7.---WhendoyouoftenwatchTVeveryday?[D]

　　---WeoftenwatchTVafterwefinish____ourhomework.

　　A.doB.todoC.didD.doing

　　（方框内是我自己给出的答案,不太确认）