I am concerned ____ it that I can’t concentrate ____ my work because of headache
题型：不详难度：来源：
I am concerned ____ it that I can’t concentrate ____ my work because of headache.| A．of; on | B．of; of | C．about; on | D．about; to |
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答案
| C |
解析
试题分析：考查介词：句意：我担心因为工作我不能专心工作。Be concerned about关心，concentrate on 集中精力于……；专心于……选C。 |
举一反三
His remark was considered to be quite ______, because it deepened the gap between two parties and caused more conflicts.| A．out of place | B．out of mind | C．out of question | D．out of order |
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| Let"s learn to use the problem we are facing ______ a stepping-stone to future success． |
The young man helped the company recover , so his boss gave him an apartment ____. | A．in return | B．in turn | C．in charge | D．in fact |
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On ____ the accident, he felt frightened. | A．saw | B．sees | C．seen | D．seeing |
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I am grateful you your kind offer．| A．to；for | B．for；to | C．to；to | D．for；for |
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