5.Some animals _________ find food for themselves.A mustn’t B havn’t C don’t have D don’t have

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5.Someanimals_________findfoodforthemselves.Amustn’tBhavn’tCdon’thaveDdon’thave5.Someanimals________

5.Some animals _________ find food for themselves.A mustn’t B havn’t C don’t have D don’t have
5.Some animals _________ find food for themselves.A mustn’t B havn’t C don’t have D don’t have

5.Some animals _________ find food for themselves.A mustn’t B havn’t C don’t have D don’t have
是不是选项有错误啊?我觉得应该是don't have to
有些动物没有必要自己找食物.

如何办理?求高手指教