题目内容
12.I can't concentrate what I am doing while the noise is going on.( )A. | on | B. | for | C. | at | D. | by |
分析 噪音一直有,我不能聚精会神地做我正在做的事.
解答 答案:A,考查固定搭配,concentrate on…表示"聚精会神,集中精力",故答案为A,句子what引导的从句作为concentrate on 的宾语从句.
点评 考查介词的辨析,在平时的学习中要对这些短语进行积累,再根据具体的语境确定答案.
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