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题目内容
（成都理工大学大学英语）
20.(单选题)I don’t know how ____ to my teacher to ask for three ____ sick leave(本题3.0分)
A.write,days
B.to write,days’s
C.write,days’s
D.to write, days’
A.write,days
B.to write,days’s
C.write,days’s
D.to write, days’
参考答案