make questions for the underlined parts in the following sentences
1. - How / your close friend / go / school /?
___________________________________________________________?
- She / cycle /.
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2. Traffic jams / a problem / big cities / Viet Nam /.
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3. If you / not careful / fall off / your bicycle /.
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4. Before / every meal / should wash / our hands / carefully /.
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5. It / about 300 km / Ho Chi Minh City /Phu Quoc Island /.
_________________________________________________________?