在英语越来越普及的21世纪，学好英语成了大学生的首要目标。为帮助大学生掌握好英语知识，特提供以下文章：
1. We___trouble from people who like leaving things around.
A. Used to have
B. Have always had
C. Are always having
D. Had
2. They___this fancy furniture, had they had enough cash on hand yesterday
A. Would buy
B. Had bought
C. Would have bought
D. Were buying
3. Tony appreciated___the opportunity to study abroad three years ago.
A. To have given
B. To have been given
C. Having given
D. Having been given
4. Of all his outdoor activities, Sam likes fishing___, but he doesn’t enjoy cleaning the fishing rods afterwards.
A. At best
B. Best
C. Best of all
D. The best
5. ___the persons concerned had anything important to say.
A. No one of
B. Nobody of
C. None of
D. No one3
参考谜底:
Answers: CCDBC
1. 此刻进行时可以表达激情色彩，常与always，continually, constantly, forever等暗示经常性或一再性的词连用，表达不满、厌恶或赞誉的激情。
2. 本题是对曩昔事实的虚拟，所以主句中应用 would have done。
3. appreciate后应接动名词或名词。Tony 与give组成动宾关系，故应选用被动语态。
4. best是well的第一流形式，是副词，作状语时不用加the; at best暗示“充其量”; best of all暗示“最好的”。
5. 复合不定代词no one是非笕?党獯的，但不成以用no one of them或no one of the teachers等，应用none of…结构。