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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1. You're supposed to say sorry to the teacher.
2. I find it difficult to remember everything.
3. How was the dinner at Paul's house last night?
4. I thought that was pretty strange at first.
5. I usually meet my friends in the library on Friday nights.