关于时间的题谢谢了,大神帮忙啊

关于时间的题谢谢了,大神帮忙啊
关于时间的20道选择题. 顺便答案O(∩_∩)O~.

1.Great as Newton was,many of his ideas________ today and are being modified by the work of scientists of our time.A.are to challenge B.have been challenged C.may be challlenged D.are challenged B ideas说明 句子是表现为被动句,应删除a ,根据意思想法被挑战是完成时态,所以选B 2.My birthday is ________.A.in three days B.within three days C.in three days'; time D.three days later 选D.three days later 3.They are leaving for Tokyo____.A.next week in the afternoon on Wednesday B.in the afternoon on Wednesday next week C.on Wednesday in the afternooon next week D.next week on Wednesday in the afternoon next week是放在最后的,排除AD,in the afternoon放第一位,因此选B 4.My brother goes____.A.every other year nowadys to London B.nowadays every other year to london C.to London nowadays every other year D.to London every other year nowadays go to London是一个词组,因此排除AB,每隔几年every other year放前面,因此选D 5.请教一道英语选择题,0分 回答：3 浏览：100 提问时间：2009-06-27 17:43 The old people ________ lonely at all since we bagan to wisit them once a week .A.don't feel B .has’t felt C.have”t left D.didn”t feel C.因为有since的句子中一般用完成时,后面的them提此时的people是负数,not at all 一点也不 意思是自从我们开始每周一次拜访那些老人,他们一点也不在感到孤独 6.It is known to all that _____ you exercise regularly,you won’t keep good health.A.unless B.whenever C.although D.if选A 7.— What’s wrong with your coat?— Just now when I wanted to get off the bus,the man next to me ____ on it.A.sat B.had sat C.had been sitting D.was sitting选D8.Daddy didn’t mind what we were doing,as long as we were together,____fun.A.had B.have C.to have D.having选A9.— What are you going to do this afternoon?— I am going to die cinema with some friends.The film _____ quite early,so we ______ to the bookstore after that.A.finished; are going C.finishes; are going B.finished ; go D.finishes; go选C 10.Millions of pounds’ worth of damage _____ by a storm which swept across the north of England last nigh A.has been caused B.had been caused C.will be caused D.will have been caused选A11.Mark was a student at this university from 1999 to 2003,______,he studied very hard and was made Chairman of the Students’ Union.A.during which time B.for which time C.during whose time D.by that time选A12.—Did Alan enjoy seeing his old friends yesterday?—Yes,he did.He ________ his old friends for a long time.A.didn’t see B.wouldn’t see C.hasn’t seen D.hadn’t seen 选D 13.The children went home from the grammar school,their lessons _______ for the day.A.finishing B.finished C.had finished D.were finished 选C 14.Leonardo da Vinci(1452-1519) _________ birds kept in cages in order to have the pleasure of setting them free.A.is said to be buying B.is said to have bought C.had said to buy D.has said to have bought 选B 15.When I called you this morning,nobody answered the phone.Where _______?A.did you go B.have you one C.were you D.had you been 选C 17.The crazy fans ______ patiently for two hours,and they would wait till the movie star arrived.A.were waiting B.had been waiting C.had waited D.would wait 选B 18.She ______ her hairstyle in her hometown before she came to Chongqing for a better job.A.would change B.has changed C.changed D.was changing 选C 19.I failed in the final examination last term and only then _____the importance of studies.A.I realized B.I had realized C.had I realized D.did I realize 选D 20.I hear we will have a ----holiday in----.A.two day 's;two day's time B.two-day;two day's time C.two-day;two days' time D.two days ;two-day time 选C 拜托把分给我吧~搜的很辛苦的~