问题
选择题
Tell me ________ how it came about that you were 20 minutes late for class. You needn’t go into details.
A．in advance
B．in vain
C．in total
D．in brief
答案
答案：D
题目分析：考察介词短语辨析。A提前，事先；B徒劳；C总共；D简洁地；句义：简洁地告诉我你迟到20分钟是怎么回事情。你不需要说得很详细。故D正确。