问题
选择题
You should take your own bags when . [ ]
A. shop
B. to shop
C. are shopping
D. shopping
答案
答案：D
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You should take your own bags when . [ ]
A. shop
B. to shop
C. are shopping
D. shopping
答案：D
sinl00πt（V），则下列说法中正确的是（ ）
V