问题描述：
读句子,选择am,is或are填空.
The black camera < > mine
How old < > you?
I < > going to go to the airport
Its name < > mimi
we< > good pen friends
The black camera < > mine
How old < > you?
I < > going to go to the airport
Its name < > mimi
we< > good pen friends
问题解答：
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