By the time they got to the quake-stricken area, the rescuers___________what difficulty they would have helping the victims out.
A.sensed | B.had sensed | C.had been sensing | D.were sensing |
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By the time they got to the quake-stricken area, the rescuers___________what difficulty they would have helping the victims out.
A.sensed | B.had sensed | C.had been sensing | D.were sensing |