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