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—What's that noise?
—Oh，I forgot to tell you.The new machine ________.
A．was testedB．will be tested
C．is being testedD．has been tested
C
考查時態(tài)和語態(tài)。根據(jù)語境判斷，此處表示“新機(jī)器正在被檢測”，因此此處用現(xiàn)在進(jìn)行時的被動語態(tài)。
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