摘要： The Roman Empire for several centuries. A. exists B. existed C. was existed D. is existing
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. The Roman Empire _____ for several centuries.
A. exists B. existed C. was existed D. is existing
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The Roman Empire _____ for several centuries.
A. exists B. existed C. was existed D. is existing
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The Roman Empire _____ for several centuries.
[ ]
A. exists
B. existed
C. was existed
D. is existing
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B. existed
C. was existed
D. is existing