用所给动词的适当形式完成句子. Some factories always have the waste water (run)to the river.
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用所给动词的适当形式完成句子。
Some factories always have the waste water ________(run)to the river.
试题答案
答案:running

用所给动词的适当形式完成句子。
Some factories always have the waste water ________(run)to the river.
答案:running