7道英语的试题 帮忙解答下

7道英语的试题 帮忙解答下
综二试题,求帮助啊
1. You must acknowledge that you ________ a fault.
A.have done B.have made
C.have produced D.have committed
答案是D, 为什么不选B呢?
2. The regulation requires that everyone who holds a non-immigrant visa ________ his address to the government in January of each other.
A.reports B.report
C.reported D.has reported
答案是B, 会不会是答案错了,至少也是A吧.
3. Since one of the teachers has objected to _______ having the main role in the play, we have had to make a last minute change.
A.his B.him
C.them D.their
答案是什么, 连句意都不懂,请高手一定能详细解释一下.
4A.hurt B.injured
C.wounded D.damaged
更不懂了,答案是C, 我经常见到别人用B.
5. these plants cannot ________ a cold winter.
A.suffer B.endure
C.sustain D.stand
答案是C, 我觉得D似乎才更对, 比如说--经得住时间的考验,好象是stand the test of time.
6. The doctors spent nine hours performing the operation on a dying man.Finally,the ___him___.
A.brought.around B.brought.back
C.brought.through D.brought.to
答案是D, 受不了. 我选了C.这个C有治疗痊愈的意思,应该是吧?
7. The little boy _____ the visitor in anger.
A.gazed at B.stared at
C.glared at D.peeked at
答案是A, 我选了C.
无奈啊.
4 Ten soldiers were killed and thirty _________.
忘了把题目写上了 - -```