13.By the end of last week,they __D__ the bridge.A.has completed B.completed C.will complete D.had completed14.Ben hates playing __B___ violin,but he likes playing ____ football.A.a…the B.the… the C./ …the D.the…/15.By the time he was 4,he __

13.By the end of last week,they __D__ the bridge.A.has completed B.completed C.will complete D.had completed14.Ben hates playing __B___ violin,but he likes playing ____ football.A.a…the B.the… the C./ …the D.the…/15.By the time he was 4,he __
13.By the end of last week,they __D__ the bridge.
A.has completed B.completed C.will complete D.had completed
14.Ben hates playing __B___ violin,but he likes playing ____ football.
A.a…the B.the… the C./ …the D.the…/
15.By the time he was 4,he __B____ a lot of German words.
A.had learned B.has learned C.learned D.learns
16 .Jim turned off the lights and then ___B__ the classroom.
A.was left B.had left C.has left D.left
17.They _____C____ in Guangzhou since 2000.
A.lived B.had lived C.have lived D.were living
18.The train from Beijing____D___ ten minutes ago.
A.has arrived B.was arriving C.arrived D.had arrived
19.The students _____B____ their classroom when the visitors arrived.
A .have cleaned B.had cleaned C.was cleaned D.have been cleaned
20.Fergie____D___ the project in one hour.
A.have finished B.will finish C.finishes D.has finished
21.The man _____B___ his coat and went out.
A.put on B.had put on C.will put on D.was putting on
22 My mother___A___ in that factory at the age of 18.
A.had worked B.has worked C.worked D.works
23.Dad ____D____ while he _______ TV.
A .fell asleep…watch B.was falling asleep…watched
C.fell asleep……was watching D.had fallen asleep…watched

13.By the end of last week,they __D__ the bridge.A.has completed B.completed C.will complete D.had completed14.Ben hates playing __B___ violin,but he likes playing ____ football.A.a…the B.the… the C./ …the D.the…/15.By the time he was 4,he __
13.正确.by the end of last week中用的是last week,所以要用过去完成时.
14.错误.选D.西方乐器要在play后加the.足球篮球等体育运动,在play后不加the.
15.错误.选A.解析类似于13题.其时间状语是过去的时态.by后加时间状语,要用完成时,完成是过去完成是还是现在完成时需要看时间.
16.错误.选D.正常的叙述的陈述语句,符合语意的时态是一般过去时.
17.正确.since 2000是时间状语,表示从2000年开始,用现在完成时.
18.错误.选C.时间状语是ten minutes ago,过去的时间,所以要用一般过去式,D选项是过去完成时,用在过去的过去,此处没用过去的过去.
19.正确.clean是在arrive之前的动作,所以用过去完成时.
20.错误.选B.in +时间做时间状语,表示一般过去的时间状态.
21.错误.选A.put on和went out用and连接,表示并列的动作,所以时态一样.
22.错误.选C.时间状语是at the age of 18,表示过去的时间,所以用一般过去式.
23.错误.选C.while引导的从句一般会用进行时,整句的时态是过去时,fell asleep表示睡着,一次性的动作,而watch TV是一直的动作.
ps:楼主.您错的有点多的啊.
那个.意见仅供参考.

正确 13.By the end of last week, they __D__ the bridge.
A. has completed B. completed C. will complete D. had completed
错误，正确选D14. Ben hates playing __B___ violin, but he likes play...

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正确 13.By the end of last week, they __D__ the bridge.
A. has completed B. completed C. will complete D. had completed
错误，正确选D14. Ben hates playing __B___ violin, but he likes playing ____ football.
A. a…the B. the… the C. / …the D. the…/解析：play 乐器前加定冠词the，体育运动类零冠词即不填
错误，正确选A15. By the time he was 4, he __A____ a lot of German words.
A. had learned B. has learned C. learned D. learns 解析，过去的过去用过去完成时 故选A
错误，正确选D16 .Jim turned off the lights and then ___B__ the classroom.
A. was left B. had left C. has left D. left 解析，and前后时态一致 故选D
正确17.They _____C____ in Guangzhou since 2000.
A. lived B. had lived C. have lived D. were living
错误，选C18. The train from Beijing____D___ ten minutes ago.
A. has arrived B. was arriving C. arrived D. had arrived 解析，ago 是一般过去时的标志 选C
正确19. The students _____B____ their classroom when the visitors arrived.
A . have cleaned B. had cleaned C. was cleaned D. have been cleaned
错误，选B20. Fergie____D___ the project in one hour.
A. have finished B. will finish C. finishes D. has finished解析，in one hour 是一般将来时的标志，选B
错误，选A21. The man _____B___ his coat and went out.
A. put on B. had put on C. will put on D. was putting on解析，and前后时态一致
错误，选C 22 My mother___A___ in that factory at the age of 18.
A. had worked B. has worked C. worked D. works解析，at the age of 18，一般过去时的标志
错误，选C23. Dad ____D____ while he _______ TV.
A .fell asleep…watch B. was falling asleep…watched
C. fell asleep……was watching D. had fallen asleep…watched 解析，while 表示动作同时进行 题中是一般过去时，选 C合适一些
竭诚相助，希望采纳！

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