You can borrow my car __________ you promise not to drive too fast.
| A．unless |
| B．even if |
| C．in case |
| D．as long as |
My sister met him at the Grand Theatre yesterday afternoon，so he ________ your lecture.
| A．couldn't have attended | B．needn't have attended |
| C．mustn't have attended | D．shouldn't have attended |
Mr.Bush is on time for everything.How ________ it be that he was late for the opening ceremony.
| A．can | B．should | C．may | D．must |
—Are you coming to Jeff's party?
—I'm not sure.I ________ go to the concert instead.
| A．must | B．would | C．should | D．might |
—Could I borrow your dictionary?
—Yes，of course you ________.
| A．could | B．will | C．can | D．might |
—Must I go there right now?
—No，you ________.You ________ go there before supper.
| A．mustn't；need | B．needn't；may |
| C．can't；need | D．won't；can |