根据短文内容作答。
Today is Saturday. The weather is warm and sunny. Bob and Jack go to the park. There are many people there. The girl under a big tree is reading a book. Two boys are playing football on the grass. The girl in a red dress is riding a bike. Two women are talking. The man beside these women is playing with a baby. Bob and Jack are beside the river. They are sitting on the chair and drawing pictures.
1．Are Bob and Jack in the park?
___________________________2．Who is reading a book?
___________________________3．What is the girl in a red dress doing?
___________________________4．Who is playing with a baby?
___________________________5．What are Bob and Jack doing?
___________________________ 
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