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1:If I ___(know) how to sing the song,I would join you
2:I___(not have) my lunch,so I'm hungry 3:The teacher gave me some___(help) advice 怎么些啊
人气:481 ℃ 时间:2019-12-13 16:28:30
解答
3.knew 后面是would 前后时态照应
2.didn't have 过去没有吃 用过去时
3.helpful
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