The time Dr. Wang has devoted _____ the disabled in the past five years is now considered_____of great value.
| A．helping; being | B．helps; to be | C．to helping; to be | D．to helping; being |
Many policemen and soldiers are _______ the forest _______ the prisoner escaping from prison.
| A．searching for; searching |
| B．searching; searching |
| C．searching; in search of |
| D．in search for; searching for |
Mr. Wang, who _____ in this city ever since thirty years ago, _____ a report for the last two years.
| A．has lived; had prepared |
| B．has been living; has been preparing |
| C．lived; has been preparing |
| D．has been living; has prepared |
I won't tell the student the answer to the math problem until he on it for more than an hour.
| A．has been working | B．will have worked |
| C．will have been working | D．had worked |
---Will you tell us what you saw in the room?
---Sure. _______ inside were lots of strange creatures with white skin and large black eyes.
| A．Having stood | B．To stand |
| C．Being standing | D．Standing |
I’ll never forget the time I taught English at the village school as a volunteer, has a great effect on my life.
| A．when ; that | B．that ; when |
| C．when ; which | D．which ;that |