Change the sentences according to the prompts in brackets 1, the streets used to be cleaner and more peaceful ( - ) 2, I used to ride a small bike in the yard outside my flat ( ? ) 3, nam didn't use to play marbles when he was 10 years old ( + ) 4, there used to be a bus station in the city center ( - ) 5, Mr Van didn't use to ride his motorbike dangerous ( + ) 6, it is over 100 km from my hometown to Ho Chi Minh City ( ? ) 7, it takes us about two and a half hours to go from Ha Noi to Con Dao by air ( ? ) 8, my father didn't use to take the bus to work ( + ) 9, children must learn about road safety ( ? ) 10, it starts Julia Roberts and Brad Pitt ( ? )

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