Complete the conversations with can,can't,may,must,needn't
1.-( ) you go to the street with me?
-I'm sorry I ( ).You ( ) ask Betty to go with you.
2.-( ) I watch TV now?
-No,you ( ).You ( ) finish your homework first.
3.-My bike is broken.( ) I use yours?
-OK,but you ( ) ride it carefully.
4.-Must I write down all the words today?
-No,you ( ).But you ( ) write them down tomorrow.
5.-( )I have a cake?
-No,you ( ).You'd better wash your hands first.