important us to learn English well.A. That’s;for B. It’s;for C. It’s;of
Mike is my good friend. He is ________American boy.
—Welcome to Hechi! —____.
—Excuse me. How long can I keep the dictionary? —You canreturn it next Monday.
—I don’t know ____ . —Because he has to look after his mother.
—Would you like to go swimming with me? —I’d like to .But I’m busy ____ my homework.