—Tony, you must have noticed the student who broke the window.
—I’m sorry. I _______ attentively.
| A．studied | B．was studying |
| C．am studying | D．would study |
The teacher and writer, as well as many guests ____ invited to the party held yesterday.
| A．is | B．were | C．are | D．was |
His jewelry shop is said ____ and he can’t help but____ the fact.
| A．robbing; to accept | B．to rob; accepts |
| C．to have robbed; accept | D．to have been robbed; accept |
The reason ____ he explained to us was ____he overslept.
| A．why; that | B．why; because | C．that; because | D．which; that |
Only after my friend came ____.
| A．did the computer repair | B．he repaired the computer |
| C．was the computer repaired | D．the computer was repaired |
Since we have made ____, we have to make ____ to achieve more.
| A．a progress; efforts | B．progresses; an effort |
| C．much progress; effort | D．little progress; efforts |