题目内容
写出下列句子的复数形式。
1. This is my book.
__________________________________.
2. Is that his uncle?
__________________________________?
3. Is she your friend?
__________________________________?
4. Yes, it is.
__________________________________.
5. This is my pencil case.
__________________________________.
1. These are our books
2. Are those their uncles
3. Are they your friends
4. Yes, they are
5. These are our pencil cases
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