单选题 I wrote him a letter to show my ______ of his thoughtfulness.
A. expectation B. congratulation C. attention D. appreciation

【正确答案】 D

【答案解析】本题考查的是名词辨析。expectation期望；congratulation祝贺；attention注意力；appreciation感谢，欣赏。本句的意思是：“我给他写了一封信来表达我对他考虑周全的感谢。”故选D。