题目内容
4.All the students have been busy all week preparing for the mid-term examination.All the students have beenon therun all week preparing for the mid-term examination.
分析 所有的学生整个星期都在忙着准备期中考试.
解答 答案:on run
考查同义转换.第一个句子里be busy doing意思是忙于做某事,第二个句子on the run 为固定短语意思是忙碌,奔跑的意思,二者可以表达同义.
点评 解答此类问题,要了解相关的近义词或同义词,同一个意思用不同的英语句型表达,然后结合题意及上下文写出正确答案
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