There used to be a big tree in front of the house.把此句改成否定句怎么改?_英语解答

There used to be a big tree in front of the house.把此句改成否定句怎么改?

人气：442 ℃　时间：2019-11-10 17:53:46

解答

There didnt use to be a big tree in front of the house
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