1 . Hiking trips ________ sound exciting to most kids, but few realize they ________ be uncomfortable and even dangerous.

A．would; should

B．must; should

C．may; can

D．can; will

2 . There is always a lot of traffic at this time of day. So I ________ arrive a bit late.

A．might

B．can

C．needn’t

D．mustn’t