题目内容
将下面的词变成复数
1. this friend ___________
2. my brother ___________
3. grandparent ___________
4. her uncle ___________
5. that key ___________
2. my brother ___________
3. grandparent ___________
4. her uncle ___________
5. that key ___________
1. these friends 2. my brothers 3. grandparents 4. her uncles 5. those keys
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