在中考模拟试题中有如下一题，令我和同事有点迷茫，请教一下知识人，感谢你的回答。
The boy got along well with his teacher.He thought ----talk with them.
A it relaxed to B it is relaxed to C it relaxin-g to D it is relaxing to

The boy got along well with his teacher.He thought _____talk with them.
A. it relaxed to B. it is relaxed to
C. it relaxin-g to D. it is relaxing to
答案：A
译文：这个男孩跟他的老师相处得很好。他认为跟他们聊可以很轻松。
解析：这里的it是个形式宾语，真正的宾语应该是个不定式短语to talk with them . 形容词relaxed 是作为宾语补足语，补充说明宾语怎么样。
类似的句型如： I think it important to learn English well .我认为把英语学好很重要。