Use the given suggestions to complete sentences

XIV. Use the given suggestions to complete sentences. (5 pts)
1. performance / she / give / last night / marvelous /.
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2. I / be / proud / my sister / because / she / always / study / good /.
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3. It / take/ me / half / hour / finish / school work / every day /.
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4. Keep / environment / unpoluuted / very important /.
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5. We / not see / her / since / we leave / university /.
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