25. ------- What’s that noise? --------- Oh I forgot to tell you. The new machine .A. was

问题补充：

25. ------- 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

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