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最佳答案：已发 .
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最佳答案：1.The plumber repaired the pipe two days ago.2.We heard a scream just now.3.The
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最佳答案：1.watched2.read3.went;went4.Did;visit5.Did;fly;flew6.put7.swept;didn't8.did;find
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最佳答案：1.How was Jane2.went to school3.he often went home4.I could fly kites5.did you s
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最佳答案：用所给词的适当形式填空.1.Tom and Mary ___________ (come) to China last month.2.Mike _______
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最佳答案：动词do的一般过去时是did.……………………………………
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最佳答案：一、用所给词的适当形式填空：1．He______swimming in the river every day in summer. (go)2.It_____