问题
选择题
________time goes by, Mother's hair has turned grey and the wrinkles on her face deeper. [ ]
A. As
B. With
C. While
D. Because
答案
答案：A
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________time goes by, Mother's hair has turned grey and the wrinkles on her face deeper. [ ]
A. As
B. With
C. While
D. Because
答案：A