单选题 16. On their way to the test center, Stan tried to comfort the author ___________ .
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单选题 5. A conclusion that can be drawn from this passage is that _________ .
单选题 2. The purpose of the second paragraph is to list some ______ .
单选题 7.Scandinavia began to make paper_________.
单选题 1. The Vienna survey may help to explain _____ .
单选题 3. To reach the third floor of a building, it would probably be most healthful _________ .
单选题 6.Where was paper invented?
单选题 4. People who live in the country probably do more driving than walking because _____.
单选题 8. Every four hundred copies of a forty-paper newspaper will need ______.