做高中英语语法填空遇到的一些问题

1.
...The exam,which was originally to be held in our classroom,__________ (change)to the library at the last minute.
...With the problem ________ (solve),I felt proud of my achievement.

在这两题中,我填写的答案分别是:changed和be solved 可是答案却是 was changed和solved
在第一题中,which后面已经有了谓语动词was了,后面应该是非谓语吧,已经是非谓语就判断是主动还是被动,明显这里是被动。可是我不明白为什么要加was?
第二题我就是乱写的。不过be solved 应该也可以表示被动吧?这一题请详细说明,谢谢!
2.
...Some play games too much,and some visit websites _________ shouldn't look at.
在这一题中,我填写的答案分别是:which 可答案却是 they
我觉得这一题应该是定语从句,at后面缺宾语,which可以作为主语和宾语。

谢谢各位大哥大姐的帮助!!!!!!!!

第1个回答  2013-07-15
第一个还是which的非谓语动词啊 相当于which was changed to the....