(2013·高考四川卷)He is so busy.He cannot afford enough time with his son he wants to.
A. even if
B. as if
C. because
D. before
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(答案→)A. even if
B. as if
C. because
D. before
解析：选A。本题四个选项都为常见连词(词组)，even if即使，as if好像，because因为，before在……之前。题干的意思是：他如此忙碌，即使想抽出充足的时间陪陪儿子也做不到。even if在此引导让步状语从句，符合题意。