1. brian taking the dog for a walk. 2. i working at the moment. 3. my parents singing beatles songsin the sitting room. 4. i not writing to my friend in england, i doing my homework. 5. we not eating your biscuits! 6. some of my classmates not working during their school holidays. 7. on the phone: ' i speaking to mrs jones? you revising for the exams or you reading a magazine? 9. mary playing the guitar? 10. peter and sara getting ready? , !
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