The Prime Minister refused to comment on the rumor that he had planned to _____.
| A．discharge | B．dismiss | C．resign | D．resume |
Don't be so anxious about that. Helen________a note.
| A．may leave |
| B．should leave |
| C．might have left |
| D．can have left |
—Mum, I climbed to get the Teddy Bear from the top of the shelf.
—My goodness! You________yourself. You________do that next time.
| A．must have hurt; mustn't |
| B．should have hurt; can't |
| C．may have hurt; mustn't |
| D．might have hurt; couldn't |
Sorry, I'm late. I________have turned off the alarm clock and gone back to sleep again.
| A．should |
| B．might |
| C．can |
| D．will |
I posted a book to her three weeks ago. She________have received it.
| A．must |
| B．should |
| C．might |
| D．could |
She________have been to your house. She doesn't know your address.
| A．mustn't |
| B．shouldn't |
| C．might not |
| D．can't |