问题标题：
用所给英文用适当形式填空1.Shecan___(swim).还有,看补充.2.Shedoessome___(run)everymorning.Soshecan____（run)fast.3.Themachine_____(notwork).Theremust_____(be)somethingwrongwithit.
问题描述：
用所给英文用适当形式填空1.Shecan___(swim).还有,看补充.
2.Shedoessome___(run)everymorning.Soshecan____（run)fast.
3.Themachine_____(notwork).Theremust_____(be)somethingwrongwithit.
陈东兴回答：
1.running(固定词组搭配）2.run(情态动词后用单三）3.doesn'twork（themachine为单数所以动词单三根据后句句意为否定句）4.be(情态动词must后用原形）
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