1.__1__dull he may be, he is certainly a very successful top executive.
A. Although B. Whatever C. As D. However
2.If only I__2__play the guitar as well as you!
A. would B. could C. should D. might
3.The party,__3__I was the guest of honour, was extremely enjoyable.
A. by which B. for which C. to which D. at which
4.Its high time we __4__, cutting down the rainforests.
A. stopped B. had to stop C. shall stop D. stop
5.The student said there were a few points in the essay he__5__impossible to comprehend.
A. has found B. was finding C. had found D. would find
答案：
1. 答案： D
【详细解答】选However。容易误选As，因为as有时用来表示尽管，但在那个句型中句首得是形容词或动词，比如可以说Dull as he may be, 。也可以把as放在句首，但要说成As dull as he may be, 。题干中说he may be而不说he is，有增加题目难度方面的考虑。
2. 答案：B
【详细解答】选could。吉他弹得好坏属于一种能力。
3. 答案：D
【详细解答】选at which。这道题出得意义不大，其实就是在考guest和party 之间选用什么介词。说at which显得最为自然。
4. 答案：A
【详细解答】选stopped。也可以说Its time we stopped。
5. 答案: C
【详细解答】选had found。英语本族语人使用时态时非常灵活，各类英语考试在命题设计上不应该再死抠那些要绕好几个弯子的时态。这道题在这方面分寸把握适度，题干设计得也不错。