摘要：686] Tom kept quiet about the accident lose his job. [译文] 汤姆对此事保持沉默是为了不丢掉工作. A. so not as to B. so as not to C. so as to not D. not so as to [答案及简析] B. so as to 中的to 是不定式符号.不定式的否定形式是将not放在不定式符号之前.

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