题目内容
10.Martin was so busy ______ the old that he gave up his part-time job.( )| A. | helping | B. | helped | C. | to help | D. | help |
分析 Martin正在忙着帮助那位老人以至于他放弃了他的兼职工作.
解答 据题意,主要考查be busy doing 的用法.前面有was,后面应为 helping,所以选A.
另外,be busy to do逻辑上来说,是不存在的.只有"有事情在做",才会be busy doing sth(正在忙);to do不定式一般表示还没发生的事情,对于还没发生的事情,用不上busy这个状态.因而,一般不存在be busy to do这种说法.
点评 该题主要考查实义动词的用法,be busy doing为固定结构.so是修饰形容词busy的,所以应为was so busy helping.
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