These words that we should pay attention to on the blackboard.A. being writtenB. are writi

问题补充：

These words that we should pay attention to on the blackboard.

A. being written

B. are writing

C. are written

D. writing

答案：

A. being written

B. are writing

(答案→)C. are written

D. writing

解析：句意：我们应该注意的单词写在了黑板上。动作的承受者作主语，用被动语态。其结构是，主语+be+done，单词和写之间有被动关系，故选C。