【题目】Bob thought he couldn't go to the party because he had to write a report, but he went ___________.
A. at first B. after all
C. above all D. at random
在线课程【答案】B
【解析】考查介词短语辨析及语境理解。句意：鲍勃认为他不能去参加聚会，因为他不得不写一份报告，但他终究去了。A. at first起初；B. after all毕竟，终究。C. above all首先；D. at random随便地。根据前面的转折连词可知，与前面情况相反，故选B。