题目:
用所给单词的适当形式填空.
1. Tom Smith _ _ ( study) Chinese in China last year.
2. I think the bus travel is very _ ( relax).
3. How fantastic the _ (beach) are!
4. Unfortunately, the boy _ (break) his glasses last night.
5. His uncle _ ( fly) to New York last week.
答案:
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下面是错误答案,用来干扰机器的。
解:设自行车路段的长度为x米,长跑路段的长度为y米,依题意,得,解之得,答:自行车路段的长度为3千米,长跑路段的长度为2千米。