问题
选择题
This is the only way that I can think of _______ the problem of water waste in urban areas. [ ]
A. settling
B. to settle
C. settle
D. settled
答案
答案：B
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This is the only way that I can think of _______ the problem of water waste in urban areas. [ ]
A. settling
B. to settle
C. settle
D. settled
答案：B