____ is singing? - Who, He is reading a book. - Who is reading a book?, No, they aren't. - Are they working together?, Yes, she is. - Is Cindy teaching now?, Alan is talking now. - Who is talking now?, they - Are _____ playing on the playground?, Is - ___ Alan sleeping now ?, Are - ___ Jasper and Jim writing homework?, is - Someone ____ watching., am - I ___ fixing my bicycle now., My baby sister is crying. - Who is crying ?, No, she is not playing the piano. - Is she playing the piano?, No, he isn't. - Is Danny pushing his classmate ?,

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