Teachers should _____ better _____ their students.
—Sorry, Doctor Smith isn’t here right now. —May I ____ a message on his desk?
He____know the answer, but I’m not sure. A:maybe B:may be C:may D:must
My sister____Beijing tomorrow. She works there. A:leaves B: is leaving for C:leaves for D: is leaving
-My mother is ill in hospital. ——_______. A:That’s OK B: All right C:Thank you D:I’m sorry to hear that.
We can use QQ to talk with each other online. --Good! Will you please show me ______it? A:what to use B:how to use C:when to use D:where to use