题目内容
根据汉意完成句子
他发现很难入睡，因此很不高兴.
He found ________ very difficult to get to sleep and he was very ________.
答案：it, unhappy
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题目内容
根据汉意完成句子
他发现很难入睡，因此很不高兴.
He found ________ very difficult to get to sleep and he was very ________.