The incident seemed funny 35 the time, but several months later it did not.
答案：(B) at
【句型】at the time 固定片語「當時」；in／on／for 都不能這樣接 the time 表達「當時」。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
in time、on time、at the time 這三個只差一個介系詞，中文卻是三個完全不同的意思，是最容易互相干擾的一組。
四個選項都是介系詞，可見這一格考的是與 the time 的搭配。先把整句讀出來：The incident seemed funny ___ the time, but several months later it did not.（那件事……看起來很好笑，但幾個月後就不好笑了。）句子拿「那個時候」與「幾個月後」對比，所以空格要的是「當時」，固定說法是 at the time。這一組三個一定要分清楚，考試很愛拿它們互相干擾：at the time（當時，指過去的某個時間點）、in time（及時，趕上了）、on time（準時，不早不晚）。
in：in time 才是通行的說法，意思是「及時」，而且不會寫成 in the time。on：on time 是「準時」，同樣不寫成 on the time。for：只有 for the time being（暫時）這個組合，單獨接 the time 不成立。
at the time（當時）、in time（及時）、on time（準時）、for the time being（暫時）、seem funny（看起來好笑）、several months later（幾個月後）。
The people in the room were tense. Five young engineers were sitting with their 31 . They were trying to settle details of an important new plant site for a major client. Suddenly one of the young engineers gave what he thought was a good solution 32 the problem. What he had to say was 33 by an uncomfortable silence. The boss then laughingly pointed out that the same proposal had been made and 34 some minutes before. The incident seemed funny 35 the time, but several months later it did not.
After the project had been successfully finished, most of the engineers who had worked on it were 36 . But the young man who had made a fool of himself at the meeting was not on the list. 37 The young engineer swore that he had never heard the proposal made and rejected. 38 He was a victim of a bad listening habit that he didn't know he had.
Bad listening habits can hurt you a lot in your daily living. Much of your success, both in your work and social life, 39 how you listen. A number of major industries and more than twenty leading colleges 40 . They have set up "listening clinics" and courses to find out what is wrong—and what to do about it.