问题
选择题
It was all my ______ that my son had made such a silly but serious _______. [ ]
A. fault; error
B. mistake; fault
C. shortcoming; mistake
D. fault; mistake
答案
答案：D
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It was all my ______ that my son had made such a silly but serious _______. [ ]
A. fault; error
B. mistake; fault
C. shortcoming; mistake
D. fault; mistake
答案：D