REWRITE  THE  FOLLOWING SENTENCES AS DIRECTED
1.my neighbour were singing karaoke during our dinner
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2.this is the first time my  daughter has flown in an airplane
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3.my father hasn't travelled abroad since 2008
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4. i started playing the piano four years ago
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5. i haven't played tennis for a week
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6.the last time he saw a doctor was in 2007
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7. my brother has been doing his homework since 8 p.m
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8.i met an old friend on my return from HCM city
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9.it's a good idea for students to take part in volunteer work
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10. while i was reading an article, she called
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