1,which do you prefer,__________(work)in a factory or ________(stay)on at school?
working,staying.
prefer 引导的两个动词形式要一一致,如prefer do sth or do sth; prefer doing sth or sth,prefer to do sth or (to) do sth(这里要省略to).working在原句中作宾语.
2,when you finish__________(read)thank book,please let me know
reading,finish + doing sth做完某事（楼主的thank book 是否应该改为this book呢,
3,stop________(make)noises!the baby is sleeping
填making,stop doing sth表示停止做某事,别吵了,孩子在睡觉呢.而stop to do sth表示停止手头上的一件事而去做另一件事,比如stop to read,表示停止做某件事,而去看书.
4,she enjoyed very much_________(stay)with the farmers for two months
enjoy + doing sth,喜欢做某事,固定搭配.
5,shall we go_________(swim)this afternoon?
swimming,go + doing,表示做某件事.如go shopping去逛街,go fishing,钓鱼
6,i am sorry i have kept you__________(wait)so long
waiting,keep doing sth,一直做某事
7,this bag is too heavy.could please help me_____(carry)it to the bus stop?
carry,help sb （to）do sth,帮助某人做某事,要把to省略掉
8,you don't know how to play this game.let me_______(show)you
show.在主动语态中let +do
9,you canniot make time__________(go)backwards
go,主动语态中,使役动词make/let/have + do sth,你不能让时间倒流（楼主的canniot 还是要改哦,