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