1.She lived in the mountain village ___the years 1940-1950.

a.between b.during c.in d.since2.The American Civill War lasted four years before the north won ____the end.a.by b.at c.in d.on3.May had finished her homework ____the time I got home.a.until b.by c.at d.when4.We stayed at the lab ____our teacher returned.a.till b.by c.during d.while5.Don✀t worry.He will return ____.a.before long b.long before c.long long ago d.long ago6.there lived an old man,fishing at sea ____.a.long before b.begore long c.long time ago d.soon7.I was told that his uncle had gone to france _____.a.long before b.shortly after c.before long d. long ago8._____Tom gets up at five in the morning.a.sometime b.sometimes c.some time d.some times9.I remember we met each other ___last year.a.sometime b.some times c.some time d.sometimes 10.May and I have been to the Great Wall ___.a.sometime b.some time c.sometimes d.some times