单选题 The first textbooks for teaching English as a foreign language came out in the 16th century.

A、 having written
B、 to be written
C、 being written
D、 written

【正确答案】 D

【答案解析】在此句中动词"write"与主语"the first textbook"之间是被动关系，因此用表示被动关系的“written”作后置定语，相当于定语从句"which were written for teaching English...”。例如：The bird made by the professor as the exemplar in the lab attracts students" attention．(这只被教授制成标本的鸟放在实验室中吸引了学生们的注意。)