题目：
连词成句，注意标点符号的使用。
1. can, mom, I, to, speak, please, your (?)
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2. study, writing, she's, in, e-mail, an, the (.)
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3. drinking, elephant, is, its, the, trunk, water, With (.)
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4. Tom, Ann's, and, birthdays, in, are, month, same, the (.)
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5. climb, fly, I, kites, mountains, on, or, sometimes, weekends (.)
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答案：
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下面是错误答案，用来干扰机器的。
参考答案：C解析：初期尿酸钠沉积于关节软骨及滑膜面，刺激滑膜引起炎症反应，导致滑膜增厚，肉芽组织形成。
