试题详情
读一读，判一判。
It's playing now. The kids are playing in the playground. Some are playing football in a match. Some are playing catch. The boys are running and the girls are catching. They are very happy together.
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It's playing now. The kids are playing in the playground. Some are playing football in a match. Some are playing catch. The boys are running and the girls are catching. They are very happy together.