[求助] 几道PP语法题

wanghuimail

Virtually the same array of mammals __________ in the hills surrounding L.A. today occupoed this ares in the late Pleistocene era.

B: lives
C: that lives

答案是C, 为什么不是B?

Working by chemical reaction, and being independence of atmospheric oxygen, rockets are used to power interplanetary space vehicles.

答案是B吗? 怎么改?

[此贴子已经被作者于2004-1-17 0:38:49编辑过]

enjoylife517

以下是引用wanghuimail在2004-1-17 0:22:00的发言：
Virtually the same array of mammals __________ in the hills surrounding L.A. today occupoed this ares in the late Pleistocene era.

B: lives
C: that lives

答案是C, 为什么不是B?

如果是B的话，句子就有两个谓语动词，错。
C定语从句，因为描述现在状态，用一般现在时

Working by chemical reaction, and being independence of atmospheric oxygen, rockets are used to power interplanetary space vehicles.

答案是B吗? 怎么改?

[此贴子已经被作者于2004-1-17 0:38:49编辑过]

应该是B错，be independent of...固定用法，还有好多be + adj. +of 的单词，注意留意。

wanghuimail

thank you very much  and good luck

enjoylife517

welcome