名词性物主代词mine/yours/his/hers/theirs — 英语填空题
题目
看例子，选词填空（mine / yours / his / hers / theirs）。例：This is Amy's pen. The pen is hers.
1. This is John's dog. The dog is ___.
2. This is my cat. The cat is ___.
3. This is your kite. The kite is ___.
4. These are Mike and Sarah's books. The books are ___（他们的）.