_____ the diamond, he had to look for a place to hide it.
| A．Having stolen | B．Having been stolen |
| C．Stolen | D．Stealing |
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 |
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 |