Whatever work you are doing, you should concentrate your attention ______it.A．to
题型：不详难度：来源：
| Whatever work you are doing, you should concentrate your attention ______it. |
答案
| D |
解析
| 考察介词。 A.到 B. 朝向 C. 带有 D. 在……上面。concentrate one’s attention on sth注意某事。故选D。 |
举一反三
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____ age.| A．for; to | B．about; over | C．in; in | D．into; onto |
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