. —She ’s failed her test again.
—________. She has been studying very hard.
| A．I don’t think so | B．Don’t worry | C．Why not ? | D．What a shame |
—Why aren’t they here yet?
—They _______the bus.
| A．can have missed | B．must be late for |
| C．may have missed | D．might be late for |
—Has your father got up?
—Sorry, I’m not sure. He __________ got up. Please go and see for yourself.
| A．must have | B．can’t have | C．would have | D．might have |
－You must say sorry to Mary, Jack.
－Why ________ I say sorry to her? It’s her who hurt me first.
| A．should | B．would | C．could | D．might |
—Why didn’t you put your cellphone in your overcoat pocket?
—I ________, but I was afraid it would be stolen.
| A．had put | B．put | C．would have | D．could have |
—Is there a fog in the evening ?
—There________be . I’ll make a phone call to find it out .
| A．must | B．would | C．will | D．might |