It's time ( )P.E.(to of for选哪个)

It's time ( )P.E.(to of for选哪个) It's time ___(for to)math class 选哪个? It's time for a P.E.lesson It's time_____ ______a P.E.lesson it'e time for ___.it's time to ____.(dinner)教教我吧, It's polite of/for to do,该用哪个? it's time for 和it's time of It's time for P.E class.(改成一般疑问句并作否定回答) It's time for It's time to it's time to和it's time for it is _waste of time for young men to devote themselves to p it's impolite _____(of / for ) you to do that.选哪个呀 it's time for love somebody to