问题
选择题
— I can't find my cell phone in my bag.
— __ it at home. [ ]
A. Have you left
B. Did you leave
C. Had you left
D. Do you leave
答案
答案：B
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— I can't find my cell phone in my bag.
— __ it at home. [ ]
A. Have you left
B. Did you leave
C. Had you left
D. Do you leave
答案：B