–What’s that noise?–Oh I forgot to tell you. The new machine .A. was tested B. will be te

问题补充：

–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

答案：

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。