摘要： 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 答:D．C项强调正在进行的被动动作.B项强调将要进行的被动动作.
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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
查看习题详情和答案>>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
查看习题详情和答案>>The first textbooks ______ for teaching English as a foreign language came out in the 16th century.
| A．to be written | B．written | C．being written | D．having written |