In order to find the missing child, the villagers all they can in the past five hours.
A. have been doing
B. did
C. do
D. had done
网友回答
(答案→)A. have been doing
B. did
C. do
D. had done
解析：考查时态。根据关键词in the past five hours说明应该使用现在完成时或者现在完成进行时。句意：为了找到失踪的孩子，在过去的五个小时里，村民们一直都在做他们能做的所有事情。根据句意是指一直在做，故使用现在完成进行时。故A正确。