[求助]语法题三道

oddyuibe

1.Although it claims to delve into political issues, television can be (superficial such as when each of the three major networks) broadcast exactly the same statement from a political candidate.

c) superfical if the three major networks all
e) superfical, as when the three major networks each

the given answer is E. Now it reads that E is better than C. Are there any concrete reasons to tell the difference? thanks


2. In terms of physics, the characteristic feature of the roller coaster is that the (cars'potential energy, gained through their being lifted by a chain drive) throuhg the earth's gravity to the top of the first drop, has been converted to kinetic energy by the time the ride ends.
a) ...
d) potential energy of the cars,gained as a chain drive lifts them

the given answer is D. Still don't know why D is better than A

3. The record of the past is always incomplete, and (the historian who wirtes about it inevitalbly reflects) the preoccupations of their own time.
a) ...
e) historians in writing about it inevitable reflect

the iven answer is E. in my point of view, "inevitable" should be "inevitably". What on the earth should the answer be?

Thanks for your assistance to slove this three problems.

bz

1.可以从时态上面考虑：if 从句用的是一般现在时，如果选A，则主句应当用will do
2.不要用被动态。
3。the preoccupations of their own time决定了历史学家必须用复数。

oddyuibe

哦，竟然没有注意到of their own time...

alex

1. each 和 all 强调的重点不同，一个是每一个，一个是所有的。转义。

2. B of A结构，优于AB结构

oddyuibe

to Alex

谢谢
这应该也是一个不错的原则B of A/ AB