他自己也有慢性背痛，所以当我提到我的不适时，他非常理解。

As someone with chronic back pain himself, he was very ___sympathetic when I mentioned my discomfort.

当我解释我的困境时，我的老师出乎意料地表示同情，并提供了额外的帮助。

When I explained my difficult situation, my teacher was surprisingly ___sympathetic and offered extra help.

每当我遇到问题时，我的朋友总是很体谅并愿意倾听。

My friend is always ___sympathetic and ready to listen whenever I have a problem.