28. Where were you _____ that time? A. in B. on C. at D. /
28. Where were you _____ that time? A. in B. on C. at D. /
日期：2021-10-26 18:18:09 人气：1
C.at 因为at that time 是固定搭配，“在那个时候”的意思
28. Where were you _____ that time? A. in B. on C. at D. /