几个非谓语动词题目

几个非谓语动词题目
1.______of the truth of the reports,he told his colleague about it.
A.convicted B.convincing C.To convince D.Having convinced
这里选A是不是因为动作已经确信了报道的真实,用过去分词表动作已完成
2.An offer of a reward has caused many students in our school_______activiely in the competition.
A.participate B.particepated C.participating D.to participate
这里选D是不是因为固定搭配
3.The boy the teachers considered_____was caught ______in the exam,which surprised us very much.
A.to be the best;cheating B.as the best student;to cheat C.being the best;cheating D.as a good student; to cheat
这句怎么翻译,怎么选
4.Alexander tired to get his work_____in the medical circles
A.to recognize B.recognizing C.recognize D.recognized
为什么选D
5.In many people's opinion,that company,though relatively small,is pleasant_____.
A.to deal with B.dealing with C.to be dealt with D.dealt with
为什么选A,逗号后不是不能用不定式吗