新东方蓝皮几道没想明白，请大侠指导！

Part 1:

90.Since 1986,when the department of labor bagan to allow investment officers' fees to be based on how the funds they manage perform,several corporations began paying their investment advisers a small basic fee,with a contract promising higher fees if the managers perform well.

A.investment officers' fees to be based on how the funds they manage perform,several corporations began

B.investment officers' fees to be based on the performance of the funds they manage,several corporations began

C.that fees of investment officers be based on how the funds they manage perform,several corporations have begun

D.fees of investment officers to be based on the performance of the funds they manage,several corporations have begun

E.that investment officers' fees be based on the performance of the funds they manage,several corporations began

Part 2:

40.Constance Horner,chief of the United States government's personnel agency,has recommended that the use of any dangerous or illegal drug in the five years prior to application for a job be grounds for not hiring an applicant.

A.the use of any dangerous or illegal drug in the five years prior to application for a job be grounds for not hiring an applicant.

B.any dangerous or illegal drug,if used,in the five years prior to applying for a job,should be grounds for not hiring an applicant

C.an applicant's use of any dangerous or illegal drug in the five years prior to application for a job be grounds not to hire them

D.an applicant's use of any dangerous or illegal drug in the five years prior to applying for a job are grounds that they not be hired

E.for five years prior to applying for a job,an applicant's use of any dangerous or illegal drug be grounds for not hiring them

41.The odds are about 4 to 1 against surviving a takeover offer,and many business consultants therefore advise that a company's first line of defense in eluding offers like these be to even refuse to take calls from likely corporate raiders.

A.that a company's first line of defense in eluding offers like these be to even refuse

B.that a company's first line of defense in eluding such offers be to refuse even

C.a company defending itself against offers of this kind that,as a first line of defense they should even refuse

D.companies which are defending themselves against such an offer that,as a first line of defense they should even refuse

E.that the first line of defense for a company who is eluding offers like these is the refusal even

90. since 所以用完成时 ABE排除  ; CD based on 介词后面优先使用名词  所以performance优于  perform

40.C中Them没有指代  前面是an appliant     D E一样的错误

   A B 中 prior to 介词 加宾语 宾语优先使用名词  所以a

41 A this that these those 不能单独出现

C   advise sb to do           defending 错 

D which 不能紧跟在修饰词的后面  要改成that 

E  同A   ; refusal n. < refuse

再请大家补充哦~~