校友一体化服务平台:Which book is Li Lei's可否说成Which is Li Lei's book?

Which book is Li Lei's可否说成Which is Li Lei's book? I like the book which is instering I don't think Li Lei is a good student. The girl which is reading a book under the tree is my sister.这句知错在哪儿 which is more important for you, knowledge from book or personal exprience? 改病句 .Can Li Lei play the tennis ? Li Lei was made finish his homework after supper.改错~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Which is false? Which game is good? Which is right"