was a green caterpillar is it a brown cocoon it 连词成句

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was a green caterpillar is it a brown cocoon it 连词成句
was a green caterpillar is it a brown cocoon it 连词成句

was a green caterpillar is it a brown cocoon it 连词成句
It was a green caterpillar.It is a brown cocoon.他以前是个绿色的毛毛虫,现在是个棕色的茧.