the rich is helpfui to us . 这句话哪里错了?

The rich is very helpful to us哪里错 It is a useful information,to us all.这句话哪里错了? 单句改错 Is the photo yours?Come and show us it.这句话哪里错了? the boy is old enough to go to school.这句话哪里错了? To pass the test ,more hard work is needed 这句话哪里错了 There is no harm to tell him the truth这句话哪里错了? Henry is the _______(rich)among us What about to see film with us?这句话哪里错了? The hospital is near to us 这句话对不对? How love the boy is 这句话哪里错了, The card is a oval.这句话哪里错了? This is the her quilt.这句话哪里错了