问题 填空题
写出下列名词的单数形式。

1. houses ________________
4. are ________________
7. potatoes ________________
10. deer ________________

2. oxen ________________
5. shelves ________________
8. sheep ________________
11. teeth ________________
3. mice ________________
6. ladies ________________
9. snakes ________________
12. men ________________
答案

1. house, 2. ox, 3. mouse, 4. is, 5. shelf, 6. lady, 7. potato, 8. sheep, 9. snake, 10. deer, 11. tooth, 12. man

问答题
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