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这五个句子全部都是一般过去时态,变否定句,分两种情况
(1)谓语动词是实义动词,变否定句,在谓语动词前加否定词“didn't”,然后把谓语动词变回原形
I didn't sleep well last nigt.
Wu Yifan didn't play football yesterday.
John didn't have a good time last weekend.
(2)谓语动词是be动词,变否定句,直接在be动词后面加“not”
4. It was not interesting.
5. There were not many pictures in the room last month.
希望能帮到你~~
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