The population of the world has grown very fast ____ four hu

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The population of the world has grown very fast ____ four hundred years.A.for past the B.in the
The population of the world has grown very fast ____ four hundred years.
A.for past the B.in the pass C.in the past D.for past
为什么选C 不能选B C和B有什么区别

实际上只有C这种结构,pass和past都有“经过”或者“过去”的意思,这两个字的发音比较接近,元音字母a都发短音,但是pass是一个动词,如：
Two score year have passed, but the rules remain unchanged.
past是一个形容词,或者介系词,表示“过去”或“经过”的意思,如：
The population of the world has grown fast in the past four hundred years.
When you read the past tense, which sound is last?
It is half past ten now.
希望我能帮助你解疑释惑.

The population of the world has grown very fast ____ four hu the population of the world has grown very fast ( ）four hund 1.The population of the world has grown very fast _____four the world's population has grown very ——.（fast） 5. The population of the world i_____ very fast the population of the world is increasing very fast.的同义句 The population of the world _______(increase) very fast? 请问在 The population of the world ____ still ____ now. A．has; grow The word's population has grown. —The population of the world ____ still ____ now. The world's population has grown to____ is was in 1800. The world's population has grown to more than six times____i