问题
选择题
Someone _____ the tap on, for the water was running over and flooding the bathroom. [ ]
A. must have left
B. ought to leave
C. should have left
D. need to leave
答案
答案：A
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Someone _____ the tap on, for the water was running over and flooding the bathroom. [ ]
A. must have left
B. ought to leave
C. should have left
D. need to leave
答案：A