文法想请教一下
1. ___ by transferring the blame to others is often called scapegoating.
a) Eliminate problems
b) Eliminating problems
c) The eliminated problems
d) Problems are eliminated
答案是b 请问为什么d不行?
2.Our company consists of about eighty staff members, ___ have worked here for
over twenty years.
a) some of them
b) some of whom
c) them
d) whom
答案是b 我选a错了请问为什么?
感谢!

1. 选D整个句子会有两个动词2. and some of them = some of whom

感谢帮忙!!!!

第二题的解释应该是主词的问题,选a就变成“有些我们的公司已经...了！”