—When did you start to collect stamps?—I got my ______ stamp when I was ______ years old.
A:does it take you to get to school on foot? B: About Twenty minutes
—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.