问题
选择题
—____should I clean out the refrigerator?
—Twice a week. [ ]
A．How often
B．How soon
C．How far
D．How much
答案
答案：A
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—____should I clean out the refrigerator?
—Twice a week. [ ]
A．How often
B．How soon
C．How far
D．How much
答案：A