1.My friend did his homework last night.(变为一般疑问句并作否定回答)
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2.You had a cold.(变为一般疑问句并肯定回答)
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3.And ,we,hungry were,thirsty,then,and,(连词成句)
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4.Sam ,Oh,a bike,yesterday,and,I,for,ride,went.for.(连词成句)
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5.My cousin is from Shanghai. (对划线部分提问)
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6.Did you help Mum do the housework (肯定、否定回答)
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7.Dad watched TV Last night(昨晚) (变为一般疑问句的形式)