Rewrite the sentences

1.Today isn't Sunday.The pupil don't go swimming
If...................................................................................................
2.Carol was studying.She didn't answer the phone because
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3.John eats so many chips.He is fat.
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4.We didn't have a map.We got lost.
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5.They were driving very quickly.That's why , the accident was so terrible
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6.It was raining.That's only reason I didn't take the children to school
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7.She was so shy.She didn't speak to him 
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8.We didn't listen carefully.That's why,we made this mistake
If.............................................................................................................................