题目内容
【题目】写出下列动词的过去式。
1.is______ 2. am________ 3.are________
4.play______ 5.visit________ 6.do _______
【答案】1. was 2. was 3. were 4. played 5. visited 6. did
【解析】
略

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题目内容
【题目】写出下列动词的过去式。
1.is______ 2. am________ 3.are________
4.play______ 5.visit________ 6.do _______
【答案】1. was 2. was 3. were 4. played 5. visited 6. did
【解析】
略