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题库 / OG2016-SC-109
El Niño, the periodic abnormal warming of the sea surface off Peru, a phenomenon in which changes in the ocean and atmosphere combine allowing the warm water that has accumulated in the western Pacific to flow back to the east.
a phenomenon in which changes in the ocean and atmosphere combine allowing the warm water that has accumulated
a phenomenon where changes in the ocean and atmosphere are combining to allow the warm water that is accumulating
a phenomenon in which ocean and atmosphere changes combine and which allows the warm water that is accumulated
is a phenomenon in which changes in the ocean and atmosphere combine to allow the warm water that has accumulated
is a phenomenon where ocean and atmosphere changes are combining and allow the warm water accumulating
E where修饰具体名词 不能修饰抽象名词phenomenon
ABC and前没有谓语动词
E combining时态错误 combining后目的是allow 应用to do结构
对啦。
E中 combine和and重复， ABC缺谓语is