问题补充：
--- If John does not come to work on time, he may be fired.
---Surely he is not so foolish that.
A. as not to realize
B. as not realizing
C. that doesn’t realize
D. as to realize
答案：
(答案→)A. as not to realize
B. as not realizing
C. that doesn’t realize
D. as to realize
解析：此题考察句型so ... as to 的否定形式so as not to 答案A 。
