Viet cau hoi duoi cho cac cau sau :
1) Thu walker to school yesterday
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2) Lan and An are students
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3) They aren"t doctors
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4) Shr did his homework yesterday
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5) They played volleyball last week
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6) He didn"t watch TV last night
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7) Huong doesn"t eat fish
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8) she isn"t reading book now 
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9) they don"t go to work by bike 
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10) hang drinks coffee everyday
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11) an  goes to the zoo by  car
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12) lan washed clothes yesterday
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13) they drew cats  yesterday 
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14) they haven"t writen a book since april
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15) he has three dog and two cats
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