单选题
12.
The new computer virus______, the system was restored to its normal operation.
A、
having removed
B、
being removed
C、
had been removed
D、
was removed
【正确答案】
B
【答案解析】
本句话中空格处表达的意思是：新的计算机病毒被清除。the new computer virusbeing removed在句子中是独立主格结构表示被动语态，因此本题答案为B。
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