Question

Tom kept quiet about the accident ____ lose his job.

　 A. so not as to 　 B. so as not to

　 C. so as to not 　 D. not so as to

Answer 1

B

解析:

 so as to 中的to 是不定式符號(hào)，不定式的否定形式是將not放在不定式符號(hào)之前。