题目内容
This new kind of chemicals will help keep the air, soil and water________ from pollution.
| A．free | B．empty | C．loose | D．short |
A
解析试题分析：考查形容词：A. free 自由的，免费的，free from免于，没有，B. empty 空的，C. loose松散的， D. short短的，句意：这种新的化学物质会有助于保持空气，泥土和水免于污染。选A。
考点：考查形容词
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| C．Couldn’t be better. | D．Couldn’t be worse. |
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| A．amazing; amazing | B．amazing; amazed |
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| A．as three times big as | B．three times as big as |
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| A．as three times big as | B．three times as big as |
| C．as big as three times | D．as big three times as |
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| A．surprising; amused. | B．surprised; amusing |
| C．surprising; amusing | D．surprised; amused |
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