If he doesn't come to work,he may be fired.Surely he isn't s

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If he doesn't come to work,he may be fired.Surely he isn't so foolish ________ not to realize that.
A.so
B.and
C.but
D.as
正确答案为:D

选D
so (…)as to 是固定搭配,是“（如此……,）以至于……”的意思.否定形式为so (…)as not to
这句话的意思是如果他不来工作,他可能被解雇.当然他不会蠢到不知道这点.

if John doesn't come to work on time,he may be fired.surely -If John does not come to work on time,he may be fired. He doesn't work today / He isn't working today He must be ill,___he doesn’t come to school. He used to be a teacher,( A.isn't he B.doesn't he C.didn't h he doesn't have to work ... If he isn't worth it now he's not going to be worth it a yea I don't mind _____ if he doesn't come He's read this book before ,< A hasn't he B doesn't he C isn He will come here if he isn't busy tomorrow. 这里为什么不用 if he w [Since,If]he doesn't come,I won't come[too,either].He asked He didn't come to work yesterday.He什么ill.