The water supply __ at the moment,so we should use less and learn ta share.加什么形式的limit
问题描述：
The water supply __ at the moment,so we should use less and learn ta share.加什么形式的limit
答
has been limited,从过去到现在的状态,当前仍是这个状态,并且这种状态不知到什么时候可以改变,所以用完成时态
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