1.The men______were all office workers.
A.which I talked to B.to those I talked C.those I talked to D.I talked to
2.The building is said_______last month.
A.to be pulled down B.to have been pulled down C.being pulled D.having been pulled down
3.Students should listen to English broadcasts______their ears.
A.to train B.train C.raining D.rained
4.The decision_______,the next problem was how to make a good plan.
A.was made B.having been made C.to be made D.had been made
5.I am not sure which restaurant______.
A.for eating B.eating at C.to eat at D.to eat on
6.When______why he walked in without permission, he just stared at us and said nothing.
A.asking B.he asked C.asked D.to be asked

写一下分析过程，非常感谢！

DBABCC
1.这是一个定语从句,the men做先行词,由于先行词是人,所以A选项不能用which,应该用whom.B和C要把those改成whom才对.D是在I前省略了whom,因为men在从句中充当宾语成分,所以whom可以省略.
2.有一个last month时间限制,说明那栋大楼已经被摧毁了,选项中只有B和D能体现出"已经",is said to do...据说做了什么,这是固定用法.A表将来,是说,即将被摧毁的大楼,意思不对,排除.CD不符和is said to的句型.
3.不定式表目的
4.理解清楚句子的意思:决定已经做了,下一步的问题就是该怎么制定一个好的计划.
后面那个句子用的是was一般过去时,所以前面的动作发生在was之前,所以要用过去完成时,由于没谓语,所以只能把他理解成一个独立组合结构,用分词来表示.所以选B(这个很重要~一开始我都没注意到!)
5.be sure to do.固定结构, at/in the restaurant,而不是用on
6.he 与ask是被动关系,其实when后面省略的是he was
即:When (he was) asked why he walked .......
A表示的是他主动问别人，而不是被问，不对．Ｂ漏了was，Ｄ是即将被问，所以排除．