单选题：How do stores promote using reusable bags?

题目内容：

How do stores promote using reusable bags? A．By selling plastic bag
B．By banning plastic bag
C．By charging for plastic bag

参考答案：

答案解析：

Thegoodthingaboutchildrenisthatthey_____________ veryeasilyt

Thegoodthingaboutchildrenisthatthey_____________ veryeasilytonewenvionments.A、ad

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