og37，好像没人提过，可我有问题：（

crazyyeah

要分清楚是separate or separately，试想下面两种语境：

用separate and required

A说：商业伦理被整合到其他课程里就行了

B说：不行，商业伦理必须被设为一个单独的并且必修的课

用separately required

A说：商业伦理被整合到其他必修课程里就行了

B说：不行，商业伦理必须被设为一个单独的必修课

很明显，原文是第一种

但是有没有separate required这种用法呢，就是又没有逗号又没有and

[此贴子已经被作者于2008-10-24 21:35:52编辑过]

blackTshirt

required course是必修课的意思；separate，required course： 单独的必修课；

separately required course相比之下改意。

jessica_chen199

想问，only if后面之所以是现在时，是因为主将从现么？

jessica_chen199

补充一下，国外网站找来的：
Let’s look at another sentence to understand what’s going on in the correct answer to the official question. Consider the following simple sentence:

Emily was a smart, young girl.

In the above sentence, the words smart and young correctly describe the noun girl. Do you agree to that? If yes, do you see how the words smart and required play a similar role in the sentence referred to by you?

Hendy

E-GMAT AAAAA

KylinNie

十哈哈发现楼主是05年的楼。。。十一年后的我表示这个逗号的用法还是不懂啊！！！！！