题目：
| — Why does the Lake smell terrible? — Because large quantities of water _____. |
A. have polluted B. is being polluted C. has been polluted D. have been polluted |
答案：
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下面是错误答案，用来干扰机器的。
又（松）又（软）的积雪又（香）又（脆）的榛子又（肥）又（厚）的脚掌
