1. Those who have visited the Grand Canyon have typically (seen layers of sediment in gaping canyon, with different colors that mark) the passage of the time like the rings in a tree trunk.
D. been able to see layers of sediment in gaping canyon, with different colors marking
E seen layers of sediment in gaping canyon, marking by different colors
答案是E,我选了D,能否解释一下??
2 The network determined that ( 17 commercials should be shown during a half-hour sitcom), while a one hour drama can be expected to contain 29.
A,
B, In a half-hour sitcom 17 commercials will be shown
C, In a half-hour sitcom 17 commercials should be shown
D, 17 commercials should be shown in a half-hour sitcom
E, 17 commercials will be shown by a half-hour sitcom
请大家讨论答案, 顺便问一下, 什么时候宾语从句后面从句的时态可以和主句不一致,谢谢
3,For decades, Surgeon Generals have warned that smoking increases the risk of lung diseases, including lung cancer and emphysema, and (can complicate pregnancy , and increases the risk of low birth weight)
C, can complicate pregnancy, increasing the risk of low birth weight
D, can complicate pregnancy by increasing the risk of low birth weight
C and D 的区别是C是伴随状语,表结果, D是表原因, 似乎都可以说通,大家选哪个那?
4, Constructed with the finest marble, the floor of the church is its greatest ( attraction and is more attractive to tourists than are its ornate stained glass windows)
Aattraction and is more attractive to tourists than are its ornate stained glass windows
B attraction, itself more attractive to tourists than are its ornate stained glass windows
请问A,B 选哪个那?
5, 请问population 是用 as many as half the population 修饰, 还是 as much as half the population 修饰,,集合名词是否都用 much 修饰, 谢谢拉,
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