I don't know ______ next time.
—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.
Basketball ____ by a Canadian doctor named James Naismith.