题目内容：

连词成句(每小题均有一处词形变化)

1.seems, be, he, unhappily, to

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2.sit alone, he, in, deep, thought

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3.hard, book, miss, to, my, it's, find

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4.did, the, about, let's, future, a survey

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5.what, we, a, wonder, time, had

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