I do my homework at five.yes,i do.（肯定回答）
he often plays basketball every afternoon.（否定回答）no,he doesn't.
we can enjoy the music every day（肯定回答）yes,we can.
my sister is always kind to others（否定回答）no,she isn't.
his cousin plays the guitar well.肯定回答 yes,he does.
做肯定和否定回答,这些句子都是疑问句才可以的.