—The window is dirty.
—I know. It________for weeks.
| A．hasn't cleaned |
| B．didn't clean |
| C．wasn't cleaned |
| D．hasn't been cleaned |
His father got very___when he made a mistake again.
| A．annoying | B．being annoyed | C．being annoyed | D．annoyed |
Do you think camping and climing is of much___to our health?
| A．benefit | B．beneficial | C．benefits | D．benefiting |
The sooner we students___to the new school, the better it will be___our studies.
| A．adapt;for | B．adjust;to | C．adopt;for | D．admit;to |
What___wonderful world it would be if all countries in the world could live in___peace with one another.
| A．a;\ | B．the;\ | C．a;the | D．the;the |
30. The man that people think is a black sheep in the city will ____ imprisonment.
| A．end up with | B．be ended up with | C．end up in | D．be ended up in |