Tom kept quiet about the accident ________ lose his job.
A．so not as to B．as so not to
C．so as not to D．not so as to
Tom kept quiet about the accident ________ lose his job.
A．so not as to B．as so not to
C．so as not to D．not so as to
C
so as to...“为了，以便……”，表示目的；不定式的否定式要把not放在“to”之前。