1.肯：Yes,he is.
否：No,he isn't.
2.肯：Yes,they are.
否：No,they aren't.
3.肯：Yes,they are.
否：No,they aren't.
4.肯,Yes,I am.
否：No,I'm not.
5.肯：Yes,it is.
否,No,it isn't.
6.肯：Yes,I am.
否：No,I’m not.
7.肯：Yes,it is.
否：No,it isn't.
8.肯：Yes,she is.
否：No,she isn't.
9.肯：Yes,he is.
否：No,he isn't.
10.肯：Yes,they are.
否,No,they aren't.