现在完成时态 练习题(4)

把下列句子改为否定句1. I have watched the film . I ________ haven’t ________ watched the film. 2. He has finished his homework. He ________ finished his homework. hasn’t ________ 3. Mum’s cooked the dinner. hasn’t ________ cooked Mum _______ the dinner. 4. We’ve learned English at school.

We ________ learned English at school. haven’t ________

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