the girl was walking down the street, the alien into a store. A. Until; went B. While; went C. While; was going
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.