请教，名词后面的同位语从句或者定语从句到底要不要虚拟

当初做了这道题目，看了解释，以为那些表命令，建议的名词后面跟that从句，是不能用虚拟的。只有动词后面的宾语从句才能用虚拟

16.One of Ronald Reagan’s first acts as President was to rescind President Carter’s directive that any chemical banned on medical grounds in the United States be prohibited from sale to other countries.
(A) that any chemical banned on medical grounds in the United States be prohibited from sale to other countries
(B) that any chemical be prohibited from sale to other countries that was banned on medical grounds in the United States
(C) prohibiting the sale to other countries of any chemical banned on medical grounds in the United States （C）
(D) prohibiting that any chemical banned on medical grounds in the United States is sold to other countries
(E) that any chemical banned in the United States on medical grounds is prohibited from being sold to other countries

http://forum.chasedream.com/dispbbs.asp?boardid=23&replyid=1980763&id=24633&page=1&skin=0&Star=1

但是，今天做了下面这道题，大家又说这些名词后面是要虚拟的

1.        One of Arthur Jessop’s first acts as president of the FHA was to deny a request from the private sector that federal home loan programs should be expanded to cover houses not conforming to civil construction codes.

(A) should be expanded to cover houses not conforming to

(B) be expanded to cover houses not conforming to

(C) should be expand to cover houses not conforming with

(D) would have been expanded to cover houses not conforming to（B）

(E) had to be expanded to cover houses not conforming with

http://forum.chasedream.com/dispbbs.asp?boardID=23&ID=24271

实在有些困惑了，请问directive that后面不能用虚拟，但direct that后面要用虚拟；而advice, agreement, command, decree, demand, desire, motion, order, proposition, request, requirement, suggestion 等名词（基本上和相应动词一样）后面的表语从句和同位语从句要用be型虚拟，不加should。

这其中到底是什么规律呢？谢谢拉

P.S. 版主大人啊，我看了大部分关于虚拟预期的文章，感觉没有回答我的问题，所以发了这篇文章，希望没给你的工作带来麻烦

up, 请问有人能帮忙吗，谢谢拉

马上就要考试了，急问，谢谢大家了

下个礼拜一就要考了，最后求指教，谢谢拉