—Can your sister play tennis?—Sure.She plays________I do.
— in the library!—OK. I'll follow it.
— What animals only come from China?— do.
— Mom, can I have more ice cream?— You can't eat too much.
— What's your father doing?— . He just relaxes (放松) at home.
— Can you come here a quarter ten?—Sure, 9:45.