连词成句，将所给单词连成完整、正确的句子。（单词不得重复使用,标点已给出）
1. sorry, supposed, teacher, you're, the, say, to. To
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2. difficult,I,everything, it, to. remember, find
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3. Paul's, was, dinner, how, the, night, at, last, house
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4. strange, that, first, pretty, thought, at. was,I
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5. nights, meet, friends, library, the, my, in, Friday,I'on. Usually
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