单选题：第18题答案为

题目内容：

第18题答案为 A．Within the first week of class.
B．Two weeks before the final due date.
C．By the end of the term.
D．A week after the last class.

参考答案：

答案解析：

第10题答案为

第10题答案为 A．The president of the college. B．The art history teacher. C．The Museum

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第11题答案为 A．Because he has some knowledge of the law. B．Because he once had the s

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第7题答案为A．She also plans to get a pet. B．Dan is allergic to cats. C．Animals will s

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