单选题
A new big oilfield is reported______in the west of the country.
A、
to have been found
B、
to be found
C、
found
D、
having been found
【正确答案】
A
【答案解析】
此句中, be reported to do sth. 是固定用法；此处用完成被动式be reported to have been done 更符合句意。 此句中两处's皆为has的缩略形式，所以用现在完成时的被动形式。
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