Rewrite the following sentences so that their meaning stays the same, using the words give.
1. The distance from my house to school is about 500 metres. (It)
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2. My father went to work by car some years ago, but now he goes by bus. (used to)
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3. Don't drive too fast or you'll have an accident. (If)
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4. Is it possible to go to Sa Pa by motorbike? (Can)
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5. My mother is a careful driver. (drives)
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6. He had a stomachache. He didn't wash his hands. (so)