问题
选择题
Iook! There are some flowers _______ of the river. [ ]
A. in middle
B. in the middle
C. at the middle
D. at middle
答案
答案：B
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Iook! There are some flowers _______ of the river. [ ]
A. in middle
B. in the middle
C. at the middle
D. at middle
答案：B