想一想，选一选。1. 当你问别人“全家福上都是谁”时，你应说：

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A. Who are they?
B. Who is it?2. 当你想告诉别人“我家有三个家庭成员”时，你应说：

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A. My family has four members.
B. My family has three members.3. 当你向别人介绍你叔叔的体貌特征时，你可以说：

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A. My uncle is thin.
B. My uncle likes music.1. A 2. B 3. A