They put their books____to make the library clean and tidy.
| A．under the chair | B．on the floor | C．behind the door | D．in the bookcase |
Be more careful this time, ______ you’ll make the same mistake again.
| A．and | B．or | C．so | D．but |
What a lovely present the old lady has received for her ______ birthday!
| A．eighteen | B．eighty | C．eighteenth | D．eightieth |
—Hello, may I speak to John, please?
—.
| A．Who are you? | B．What's the matter? |
| C．This is John speaking. | D．He is John. |
Please turn to page and look at the picture in this unit.
| A．twentieth; one | B．twenty; one | C．twentieth; first | D．twenty; first |
The Internet is really to us. We can download a lot of things from it.
| A．useful | B．difficult | C．different | D．safe |