12.(2.5分) The first textbook ___ for teaching English as a foreign language came out in the 16th century.
A、have written
B、to be written
C、being written
D、written
(责任编辑:admin) |
12.(2.5分) The first textbook ___ for teaching English as a foreign language came out in the 16th century.
A、have written
B、to be written
C、being written
D、written
(责任编辑:admin) |