1.who is the man ___is giving the children a piano lesson who which that why 2.I
1.who is the man ___is giving the children a piano lesson
whowhichthatwhy
2.I decided to stop and have lunch,____I was feeling quiet hungry
soforwhenif
3.I'm not sure __she'll like it or not
whether ifwhen how
4.our teacher spoke in a loud voice ___allofus could hear him
soso thatsuch thatsince that
5.Ifthere is going to be rain tomorrow ,I'll stay at home （改错）
把going to be 去掉,为什么这么改rain不是动词吗 直接is＋rain
都怎么做为什么求详细解答