1. Nobody would stand out admitting the fact, for some reason, _______ they lost the game.
A. that
B. which
C. what
D. why

2. ________ the help of their group, we would not have succeeded in the investigation.
A. But for
B. Despite
C. Regardless of
D. Besides

3. Please tell your father I'm very grateful to him for the warm welcome I have received here and ________ I go back I will tell my family all about my visit here.
A. that when
B. that
C. when
D. while

4. Nathalie suggested the problem worth paying attention ________ at the meeting.
A. to be discussed
B. to being discussed
C. being discussed
D. to discussing

5. _______ their work will give us a much better feel for the wide differences between the two schools of thought.
A. To have reviewed
B. Having reviewed
C. Reviewing
D. Being reviewed

1.
[答案]A
[答案解析]本题中for some reason为插入语，the fact后面是同位语从句补充说明the fact的内容。

2.
[答案]A
[答案解析]but for = if it had not been for。从该句前后语义及其结构可以看出，句子后半部分是对过去的虚拟式表达，而前半部分则是对一个事实的陈述，所以这里需要一个词（词组）来表达假设条件的含义，才能使前后两个分句构成合理的逻辑关系及结构表达方式。因此but for（要不是）符合要求。besides（此外，除了）；regardless of（不管，尽管）；despite（尽管）均不符合题意。

3.
[答案]A
[答案解析]本题考查宾语从句。这是一个主从复合句，主句包括两个并列的宾语从句，第一个从句的that可省，第二个或第二个以上的从句的that都不可省。

4.
[答案]A
[答案解析]本题考查虚拟语气。当suggest意为“建议”时，从句要用虚拟语气。本题从句中the problem 为主语，worth paying attention to为定语，(should)be discussed为谓语。

5.
[答案]C
[答案解析]reviewing用在该句中与their work构成动名词短语作主语。