23.— What’s that terrible noise.David? — Oh,I forgot to tell you.The new machines in the n

发布时间:2020-08-16 06:45:46


23.— What’s that terrible noise.David?
— Oh,I forgot to tell you.The new machines in the nearby plant     .
A. were tested
B. will be tested
C. are being tested
D. have been tested

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A. were tested
B. will be tested
(答案→)C. are being tested
D. have been tested
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