Deaf people talk ________.
| A．with signs | B．with sign language | C．by signs | D．by speaking sign language |
23. Don’t try to cheat the taxman(税务人员); you’ll never ______it.
| A．get out of | B．get into | C．get along | D．get away with |
22. —Who______ it be that is knocking at the door?
—It ______ be Father, but I’m not sure.
| A．can; must | B．can; may | C．must; can | D．may; must |
21. He apologized ________ late.
| A．to his teacher to arrive | B．to his teacher for arriving |
| C．at his teacher to arrive | D．at his teacher for arriving |
20. I got up early this morning, but I ________ so because I was not on duty today.
| A．mustn’t have done | B．needn’t have done |
| C．didn’t need to do | D．can’t have done |
19. It’s dangerous to have the fire _______ at home all night long.
| A．to burn | B．burn | C．burned | D．Burning |