It’s not easy being your age,and it’s normal to have these feelings.这个句子的be动词为什么要加ing?
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It’s not easy being your age,and it’s normal to have these feelings.这个句子的be动词为什么要加ing?
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It’s not easy being your age,and it’s normal to have these feelings.这个句子的be动词为什么要加ing?