问题描述:
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
不能选B吗?前面不用加谓语吗?不是 is written吗?
A.have written B,to be written C.being written D.written
不能选B吗?前面不用加谓语吗?不是 is written吗?
问题解答:
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