1.Different people have diffrernt thoughts on this subject .(改写句子,句意不变)
People _____ _____each other on this subject.
2.I mistook her for her sister ,because they are so alike.
(改写句子,句意不变)
I _____ her _____ sister ,because they are so alike.
3.The traffic in big cities is heavier than that in small ones.
(改写句子,句意不变)
The traffic in small cities is _____ _____ _____ _____ that in big ones.
麻烦写下理由．谢谢!