---I thought you were going to call me last night about the plans for the conference.
---Sorry, I ______. But Tom and Jane stopped by and stayed until midnight.
| A．must have | B．can’t have |
| C．might do | D．should have |
—I wonder where Peter is.He said he’d be here for lunch.
—Don’t worry！He________be caught in the rush hour.
| A．will | B．should |
| C．can | D．may |
My mother is a great cook and we ________ never get enough of her cookies.
| A．may | B．need |
| C．should | D．can |
—Could I have a word with you，mum?
—Oh，dear，if you ________.
| A．can | B．must |
| C．may | D．should |
It is important to know about the cultural differences that ________ cause problems.
| A．must | B．dare |
| C．may | D．shall |
—Did you go to the fashion show last week?
—I ________，but I was fully occupied the whole week.
| A．must go | B．must have gone |
| C．would go | D．would have gone |