The worker cut down the trees in this forests.(改为否定句)
网友回答
The worker didn't cut down the trees in this forests.
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======以下答案可供参考======
供参考答案1:
The worker didn' t cut down the trees in this forests
供参考答案2:
The worker didn't cut down the trees in this forests.
the worker 后不会跟动词原形,因此cut是过去式