问题
选择题
You have to explain ____ us the reason _____ your being absent from school yesterday.
A．to; of
B．to; why
C．for; that
D．to; for
答案
答案：D
explain sth to sb 把......向某人解释，所以第一空用to；the reason _____ your being absent from school yesterday.你昨天上学迟到的原因，……的原因，用for the reason。所以选D。
