问题
选择题
He found it hard for Alan to focus on his teachers for longer than five minutes, _________ if the lecture was boring.
A．extremely
B．especially
C．basically
D．naturally
答案
答案：B
词义辨析。A. 非常；极端的 B. 特别；尤其 C. 主要的；基本上 D. 自然地。句意：我发现艾伦很难注意他的老师超过五分钟，特别是当讲座令人厌烦时。故选B。
