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。