他的妈妈正在看电视。
当妈妈正在做饭时，我在看电视。
妈妈正在打扫房间，与此同时，爸爸正在看电视。
Mother was cleaning the room, and meanwhile, Father was watching TV.
一天，汤姆正在看电视，妈妈回来了。
当妈妈正在做饭时，我在看电视。
汤姆的爸爸正在读书，他的妈妈在看电视。
Tom's father is reading a book, and his mother is watching TV.
奶奶在看电视，爷爷在看书，爸爸在写电子邮件，妈妈正在做饭。
Grandma is watching TV. Grandpa is reading a book. Dad is writing ane-mail. Mom is cooking dinner.
奶奶在看电视，爷爷在看书，爸爸在写电子邮件，妈妈正在做饭。
Grandma is watching TV. Grandpa is reading a book. Dad is writing ane-mail. Mom is cooking dinner.
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