og11 82 Senator Lasker has proposed legislation requiring that employers should retain all older workers indefinitely or show just cause for dismissal.
(A) that employers should retain all older workers
(B) that all older workers be retained by employers
(C) the retaining by employers of all older workers
(D) employers’ retention of all older workers
(E) employers to retain all older workers
答案是E
Under the Safe Drinking Water Act, the Environmental Protection Agency is required either to approve individual state plans for controlling the discharge of wastes into underground water or that they enforce their own plan for states without adequate regulations.
(A) that they enforce their
(B) for enforcing their
(C) they should enforce their
(D) it should enforce its
(E) to enforce its
答案e
前一题后面的不定式to省略了，后一题没有 是不是to省不省都对啊
答案e
前一题后面的不定式to省略了，后一题没有 是不是to省不省都对啊 | 
