I needa letter to my friend before I go there . A.write B writing C.to write D.written

问题补充：

I needa letter to my friend before I go there .

A.write B writing C.to write D.written

答案：

解析：考察非谓语动词。本题中need为实意动词，需要。主语为人，need后接带to的不定式作宾语，need to do sth，表示需要做某事，故选C