—I would like you to talk about the Great Wall. —I’m sorry, but _________ Jack _________ I have been there.
Shall we ask Dr. Hu for ____?
—How are you feeling today? —____ But I still cough very badly.
Kangkang is going to ask for _____.
—Excuse me, sir, would you mind helping me carry that box? —_____ I’m glad to help.
We should say ____ to second-hand smoke.