问题
选择题
The hospital opened 5 years ago. It _____ for 5 years.[ ]
A. opened
B. opens
C. has been open
D. has opened
答案
答案：C
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The hospital opened 5 years ago. It _____ for 5 years.[ ]
A. opened
B. opens
C. has been open
D. has opened
答案：C