Why did you just sit and watch？ You _______ me.
| A．could help | B．should help |
| C．could have helped | D．must have helped |
“Why didn’t she come to the meeting yesterday？” “I’m not so sure. She ______ ill.”
| A．should be | B．should have been |
| C．must be | D．might have been |
He ______ the test again, in which case, his mother will be very disappointed.
| A．might fail | B．must have failed |
| C．should fail | D．could have failed |
I didn’t see her in the meeting room this morning. She ______ have spoken at the meeting.
| A．mustn’t | B．shouldn’t |
| C．needn’t | D．couldn’t |
They often go to the restaurants for meals. They _____ be very poor.
| A．mustn’t | B．can’t |
| C．may not | D．needn’t |
“Shall we go shopping？” “Sorry, we _______ buy anything now because none of the shops are open.”
| A．mustn’t | B．needn’t |
| C．can’t | D．shouldn’t高.考.资.源.网 |
I _______ have met him a long time ago. Both his name and face are very familiar.
| A．may | B．can |
| C．would | D．should |
“I called you yesterday. A woman answered, but I didn’t recognize her voice.” “Oh, it _____ my aunt Jean.”
| A．must be | B．must have been |
| C．might be | D．can have been |
Are you still here？ You ______ home hours ago.
| A．should go | B．should have gone |
| C．might go | D．may have gone |
As she’s not here, I suppose she _____ home.
| A．must go | B．must have gone |
| C．might go | D．might be going |