1.I work in a business __almost everyone is waiting for a great chance.
a how b which c where d that
（我认为是d,可答案是c）
2.He insisted that what he did __rightand the man who had done wrong to him__
a was;was punished b be;be punisded
c was ;be punished d be;was punished
(这里insist应该是认为的意思吧,不是要用虚拟吗,He insisted that what he did （should) be right吗,可答案是c）
3.__in the regulations that you should not tell other people the password of your e-mail account.
a What is required b What requires
cIt is required d It requires
看不懂该怎么填）