For centuries the upper classes in Britain spoke French ______ the common people spoke English.
| A．while |
| B．when |
| C．though |
| D．since |
They had their hearingby the loud noise of machines.
| A．injured | B．wounded | C．hurt | D．harmed |
My sister met him at the cinema yesterday afternoon, so heyour lecture.
| A．couldn’t have attended | B．needn’t have attended |
| C．mustn’t have attended | D．shouldn’t have attended |
——Will you stay for lunch?
——Sorry，. My brother is coming to see me.
| A．I mustn’t | B．I can’t | C．I needn’t | D．I won’t |
Seeing the enemy, Gary was behaving as though nothing.
| A．happened | B．had happened | C．would happen | D．was happening |
——Whoit be that is knocking at the door?
——Itbe Father, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |