( )enough water to the people in the city is a problem（supply）用所_英语解答

( )enough water to the people in the city is a problem（supply）用所给词的适当形式填空
怎么填啊,要说明原因

人气：168 ℃　时间：2020-04-05 20:46:01

解答

动名词,作主语能带to么不可以，to表示一个原因