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11. My sister began to learn English when she was six years old.
=>My sister has..............
12. Minh began to drive a car in 2018.
=> Minh has .................
13.We havent seen him for a long time.
=> The last time ...............
14.I last saw him when I was in Ho Chi Minh City.
=> I havent...............
15. She has lived in Da Nang since she was a child
=>She began............