1 . English is a language that many young people around the world ________ not speak perfectly but at least ________ understand.

A．may; can

B．would; might

C．will; must

D．could; might

2 . You             smoke here in the gas station; you            start a terrible fire.

A．shouldn’t, must	B．mustn’t; might
C．may not; could	D．can’t; should