英语 单复数转换：
1 Is that a photo?
2 Is it a pencil sharpener?
3 Are those his friends?
4 Are they Tom's daughters?
人气：366 ℃ 时间：2020-03-26 15:53:23
解答
1 Are those photos?
2 Are they pencil sharpeners?
3 Is that his friends?
4 Is she Tom's daughter?
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