Thank you for _________ me a letter.A.write B.to write C.is writing D.writing

题目

Thank you for _________ me a letter.A.write B.to write C.is writing D.writing

答案

Thank you for （writing）me a letter. 选D
简单来说是因为for后面要接动名词,即动词+ing.
例如：Thank you for teaching me a lot. 谢谢你教了我许多东西.