88. Often visible as smog, ozone is formed in the atmosphere from hydrocarbons and nitrogen oxides, two major pollutants emitted by automobiles, react with sunlight.
(A) ozone is formed in the atmosphere from
(B) ozone is formed in the atmosphere when
(C) ozone is formed in the atmosphere, and when
(D) ozone, formed in the atmosphere when
(E) ozone, formed in the atmosphere from
请问各路大牛这题为什么不选E?觉得ozone和react搭配也没问题啊
vvchasedream 发表于 2016-3-23 16:57
这题是选B吗?
elusive 发表于 2016-3-21 12:52
E:谓语出了问题。
句子结构: (Often visible as smog)(修饰成分), ozone (主语), (formed in the ...
欢迎光临 ChaseDream (https://forum.chasedream.com/) | Powered by Discuz! X3.3 |