Rewrite following sentences,using "USED TO" or "DIDN'T USED TO"

Rewrite following sentences,using "USED TO" or "DIDN'T USED TO"
1.We usually lit our houses with candles
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2.Sailors were usally guided by strars
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3.People usually cooked on wood fires
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4.It usally took me serveral days to go to London
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5.Books were usually written by hand
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6.People usually travelled on foot
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7.They usually made their own bread
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8.The old sailro usually drank lots of whisky
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9.Mr.Smith usually smoked cigars
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10.Bill usually worked very hard
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