1.We can come to the ______ that the more we practice，the more skillful we will be.
A. tradition
B. generation
C. conclusion
D. fact
2.I wished it ______ but it did.
A. had not occurred
B. occurred not
C. did not occur
D. would not occur
3.I have no choice ______ lay the facts before the public exactly as they occurred.
A. but to
B. and to
C. with to
D. only to
4.His illness accounts ______ his absence from class.
A. to
B. for
C. over
D. after
5.______ a little earlier，I would have caught the train.
A. Did I leave
B. Would I leave
C. Had I left
D. Have I left
参考答案：
1.正确答案：C答案解析：像这类题考查单词的掌握，四个词意思不一样，就看哪一个放在句中逻辑上、语法上是正确的。这里come to the conclusion是一个固定词组，意指“得出结论”。
2.正确答案：A答案解析：本题考查的是虚拟语气的用法，表示的是与过去相反的情况，要用过去完成时，答案为A.
3.正确答案：A答案解析：本题考查的是固定搭配的用法。have no choice but to do sth.表示“别无选择只能做某事”。
4.正确答案：B答案解析：account for表示：是……的原因/理由。
5.正确答案：C答案解析：本题考查的是if引导的虚拟条件句，省略了if要把had提前。