during the last decade of the 19th century 与什么时态连用?Millions of immigrates------ in Europe during the last decade of the 19th century A.has arrived B.had arrived C.arrived选哪个,为什么?

during the last twoyears用于什么时态 during the last few years与during the last a few years有区别吗? During-the-last-year-of-study-at-University是什么意思 During-the-last-year-of-study-at-University是什么意思 I ______ (落下) my backpack during the concert last weekend. what did you du during the last Soring Festival?awhat did you du during the last Spring Festival? in the last two years/during the last two years/in the past two years/during the past two years有什么区别? during the three days 做状语时的时态during the last three days 做状语时的时态 时态区别during the last two weeks during the night 为什么前者是跟现在完成时,而后者跟过去时? 时态区别during the last two weeks during the night 为什么前者是跟现在完成时,而后者跟过去时? during the during the last do what summer you during do thelast do what summer you during do the holidays(连词成句) 当句子的状语为“during the last+时间”（如：during the last ten years),谓语动词用过去式还是过去完成时?有人能否回答的正常些？ my life has change a lot during the __years.a.last a few b.last few c.a few last d.few last This story happened _______ the last few years. A. at B. since C. during D. for This story happened the last few years?A.at B.since C.during D.for You went on a three-day school trip during the last vacationzuowen