问题
选择题
The shoes are ________ sale ________ $30.
[ ]
A. for; on
B. on; for
C. at; on
D. in; for
答案
答案：B
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The shoes are ________ sale ________ $30.
[ ]
A. for; on
B. on; for
C. at; on
D. in; for
答案：B