【把下列句子变成被动语态：Heoftenmakesmodelplanesinhissparetime.Shetaughtusgeographylastyear.Heisweighingthestones.Theymayofferyouagoodjob.（用两种方法）IsawLilytakingawalkthistimeyesterday.Weoftenhea】

　　把下列句子变成被动语态：

　　Heoftenmakesmodelplanesinhissparetime.

　　Shetaughtusgeographylastyear.

　　Heisweighingthestones.

　　Theymayofferyouagoodjob.（用两种方法）

　　IsawLilytakingawalkthistimeyesterday.

　　WeoftenhearhimsingEnglishsongs.

　　Peoplehavemadehimpresident.

　　Didhethrowtherubbishjustnow?

　　WhathasTomboughtsofar?

　　Whoisusingtheplasticbags?