问题
选择题
_____ you read the instructions closely, you would know what I _____ referring to now. [ ]
A. Had; was
B. Should; am
C. Had; am
D. If; was
答案
答案：C
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_____ you read the instructions closely, you would know what I _____ referring to now. [ ]
A. Had; was
B. Should; am
C. Had; am
D. If; was
答案：C