求大神指教,如何区分英语是考动词时态还是非谓语动词?如☞when we arrived at the airport,we were told our flight_____①had cancelled ②had been cancelled答案是②,我以为是考非谓语动词,选的是①,如何区分?
到达(arrived)时间已经过去,航班被取消的动作发生在 arrived"到达"/ were told "被告知" 之前所以用过去完成时的被动语态 had been cancelled
ok