Tom: Hello, Peter. What are you doing? Peter: I'm reading a book. Tom: What's your father doing? Peter: He' s cleaning the floor. Tom: Where's your mum? Peter: She's in the kitchen. She's cooking. 1．Peter is reading a book. ( ) 2．Peter's father is cleaning the floor. ( ) 3．Peter's mother is cooking. ( ) 4．Peter's sister is in the kitchen. ( )
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