--- Did I lock the door when I went out?
--- Yes, you did. I saw you _____ it.
| A．locking | B．lock |
| C．to lock | D．locked |
Follow your teacher’s advice, _______ you’ll make great progress in your English.
| A．or | B．and | C．but | D．so |
You _______ write the poem down. Our teacher will give us a copy.
| A．can’t | B．shouldn’t | C．needn’t | D．mustn’t |
Knowing how to _______ a map can help you when you are travelling in a strange place.
| A．read | B．watch | C．look | D．see |
Now the air in our city is _______ than it used to be. Something must be done to stop it.
| A．very good | B．much better | C．rather bad | D．even worse |
—The books are so nice, which one can I take?
—Oh, you can take _______ of them. I’ll keep none.
| A．both | B．all | C．neither | D．either |