Rewrite the sentences so that their meaning stays the same, do as directed in the parentheses
47. We should clean our teeth twice a day. (turn into passive voice)
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48. Because Lan woke up late, she didn’t have time for breakfast. ( using so )
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49. Although they were the better team, they lost the match yesterday. ( using but)
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50. Perhaps Alex plays football with Pingping in the yard. (using might)
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