这题咋回事啊？？？？？？

dzxu

At an orientation meeting, the travelers were told that a visa, a landing card, and evidence of inoculation against typhoid fever would be needed by each of them.

A.    a visa, a landing card, and evidence of inoculation against typhoid fever would be needed by each of them
B.    they would need a visa, a landing visa, and evidence of their being inoculated against typhoid fever
C.    they would need evidence of being inoculated against typhoid fever and a visa and landing card
D.    they would each need a visa, a landing card, and evidence of inoculation against typhoid fever
E.    they would need visas, landing cards, and evidence of inoculation against typhoid fever for each of them.

给的答案是D。

E错在哪里呢？
D中的each附加在they之后，起修饰作用，应该并不改变they作为主语的性质，后面跟的visa，card等应该用复数才是啊？

xcdamon

New equipment and other improvements reduced the amount of time—from eleven hours in 1982 to six in 1988—needed by workers so that they could produce a ton of steel.
A. needed by workers so that they could produce
B. needed when workers are producing
C. workers need in producing
D. workers needed to produce
E. workers need for their producing of


个人觉得 A 选项的 needed by 有问题 是不是 sth be needed for sb 更好呢？ 当然有人说被动语态不够好。。i don‘t know why.

bitieming

they need...for each of them是awkward的
each作副词修饰need，用单数清晰表明了“每个人分别需要一个V，一个L和一个E"的含义，用复数则表达一个人可能需要多个V，L和E，造成了表达的不清晰。