问题
选择题
The old bridge,________300 years ago,was washed away by a heavy flood last summer.[ ]
A. building
B. to be built
C. to be building
D. built
答案
答案：D
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The old bridge,________300 years ago,was washed away by a heavy flood last summer.[ ]
A. building
B. to be built
C. to be building
D. built
答案：D