法律保护公民的隐私权，能够促进社会的和谐，维护社会的安定团结。[ ]
√
被除数比除数大，商就一定大于1。[ ]
—I’m afraid you missed a fantastic lecture yesterday. How come you were absent from it?
—If you _______ know, I asked for a day off and visited a relative of mine in hospital.
A．might
B．may
C．shall
D．must
