问题补充:
Tom kept quiet about the accident lose the job.
A. so not as to
B. so as not to
C. so as to not
D. not so as to
答案:
A. so not as to
(答案→)B. so as not to
C. so as to not
D. not so as to
解析:考查不定式的否定式。固定搭配:so as to do sth为了做某事;注意不定式的否定式是在不定式符号前面直接加not。句意:为了不失去这份工作,Tom对于这个事故保持沉默。故B正确。