过去完成时与过去完成进行时 — 英语词汇题
题目
用所给动词的适当时态填空（过去完成时或过去完成进行时）。1. By the time the archaeologists arrived, the villagers __________ (dig) at the ancient site for two weeks, but they had found nothing. 2. She told me that she __________ (visit) the museum three times before that day.