One Sunday morning, Li Ming and his grandpa are 1.
feeding the bird in the cage. The bird was unhappy 2.
because it had enough food and water. Li Ming.did not 3.
know why not. The next morning on his way to school, 4.
Li Ming saw some birds flew in the sky. Then he thought 5.
about the lonely bird in the cage. He decided to persuade his 6.
grandpa to set the bird free. When he got to home, he said 7.
to his Grandpa,“Birds also need friends!” To his delighted , his 8.
grandpa agreed.The bird set free. Grandpa and the children 9.
were very happy to see the bird flying away in the sky. 10. 1. are 改为 were
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(答案→)1. are 改为 were
解析：
1. 因为前面的One Sunday Morning 已经说明故事发生在过去，用过去时态
2. 正确
3. 前后是让步关系
4. not多余
5. 这里用到了see…doing 词组用法
6. 这里应该是“想起”的含义
7. get home，中间没有to
8. to one’s +抽象名词“ 令某人…”
9. 这里应该用被动关系
10.这里应该是“飞入空中”