1、I'm helpful at home.2、Mike and john are good friends.3、I can sweep the floor.4、I do my homework every clay.改为一般疑问句,作肯定

1.Are you helpful at home?
Yes,I am.
2.Are Mike and John good friends
Yes,they are.
3.Can you sweep the floor
Yes,I can.
4.Do you do your homework every day
Yes,I do.