38.Identify the errors in the following sentence:By the year

38.Identify the errors in the following sentence:By the year 2010,the earth will have inhabited twice of many people as it is today.[ 1分]
A.By the year 2010B.twiceC.ifD.it is
* 39.______ we would not have succeeded in our experiment.[ 1分]
A.Without you helped usB.But for you helped usC.If you had not helped usD.But you helped us
* 40.Identify the errors in the following sentence:We had better to review this chapter carefully,because we will have some questions on it in ourtest tomorrow.[ 1分]
A.to reviewB.willC.on itD.tomorrow
* 41.Identify the errors in the following sentence:Maradona,who led Argentina to their World Cup triumph in Mexico in June 1986,is undoubtedly one of the greatest soccer player the world has ever produced.[ 1分]
A.ledB.undoubtedlyC.soccer playerD.ever
* 42.We work_____ a five-day-week basis.[ 1分]
A.atB.asC.withD.on
* 43.The football game will be played on ______.[ 1分]
A.June sixB.six JuneC.The sixth of JuneD.the six of June
* 44.The discussion ______ a wide range of subjects.[ 1分]
A.dealtB.didC.coveredD.had
* 45.We were held ______ for five minutes in a traffic jam.[ 1分]
A.onB.upC.outD.to
* 46.The workers are having talks with the ______.[ 1分]
A.managersB.managementC.manageD.managing
* 47.Identify the errors in the following sentence:The old artist is in the habit of going for a walk in the park every morning except it rains.[ 1分]
A.in the habitB.going for a walkC.every morningD.except it rains
* 48.______ Christmas Eve,the street was filled with festival circumstances.[ 1分]
A.InB.AtC.OnD.By
* 49.We moved to the front row ______we could hear and see better.[ 1分]
A.so asB.so thatC.becauseD.such that
* 50.Identify the errors in the following sentence:It striked me that they had really learned a great deal there.[ 1分]
A.strikedB.that they hadC.really learnedD.a great deal

第一题我觉得C和D都可以,twice as many people是比较正确的说法,但是那个指代的it is应该改为it has比较好.非要选的话,选C吧,肯定错了.
第二题选C,虚拟语气.
第三题选A,had better do sth.
第四题选C,one of后面的词语应该是复数.
第五题选D,on a basis.
第六题选C,日期的表达要用序词.
第七题选C,cover是涵盖的意思.
第八题选B,hold up就是被困住了.traffic jam是交通堵塞.在交通堵塞中被困住了.
第九题选A,显然having talks的对象只能是人.A是经理的意思.其余都不是指人的名词.
第十题选D,应该是except when it rains,except后面是名词或者从句.
第十一题选C,在某一个特定的时间用on做介词.
第十二题选B,做了什么所以能做什么.挤到前排所以我们能看得更清楚.
第十三题选A,strike的过去式不是striked,是stroke.