题目：
连词成句。
1. can't, go, skiing, I, this, afternoon (.)
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2. hears, mother, speaking, her, she (.)
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3. know, Do, phone, you, the, number (?)
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4. have, classes, we, English, Sunday, on (.)
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5. Jim, first, to, call, mother, needs, his (.)
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答案：
1. I can't go skiing this afternoon.
2. She hears her mother speaking.
3. Do you know the phone number?
4. We have English classes on Sunday.
5. Jim needs to call his mother first.
