题目内容
The first textbooks _____ for teaching English as a foreign language came out in the 16th century.
A. being heard B. to be written C. being written D. written
D
解析:
过去分词作定语表示动作是被动的,而且已经完成。
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题目内容
The first textbooks _____ for teaching English as a foreign language came out in the 16th century.
A. being heard B. to be written C. being written D. written
D
过去分词作定语表示动作是被动的,而且已经完成。
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