–What’s that noise?
–Oh, I forgot to tell you. The new machine .
A. was tested
B. will be tested
C. is being tested
D. has been tested
网友回答
A. was tested
B. will be tested
(答案→)C. is being tested
D. has been tested
解析：本题考的是动词的时态和语态。主语the new machine和谓语test是被动的关系，故用被动语态。从上文可判断出该动作一直在进行中，所以本题应该使用进行时的被动语态。