The last bus _________ two minutes before I arrived at the bus stop. What a pity!
| A．left | B．has left |
| C．was leaving | D．had left |
17. With the help of our class, Little Mike made such great progress in Chinese that he can write a 200-character ____ .
| A．compositions | B．papers | C．essays | D．Article |
18. Deng Xiaoping was our general designer of reform and opening up to the outside world(改革开放). After he passed away, his ____were scattered over the sea.
| A．ashes | B．ash | C．dusts | D．Dust |
19. Russia is a country which extends across _____ .
| A．Asia | B．Europe | C．Asia and Europe | D．Africa |
20. "What can I do for you?" or "May I help you?" is a pet phrase used by _____ .
| A．an assistant engineer | B．an assistant manager |
| C．a helper | D．a shop assistant |
21. Move a few steps, and the oil-paintings look better ______.
| A．in the distance | B．at once | C．in the open air | D．at a distance |