问题
选择题
Don't point _____ others. It's not polite( 礼貌的).[ ]
A. on
B. at
C. of
D. in
答案
答案：B
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Don't point _____ others. It's not polite( 礼貌的).[ ]
A. on
B. at
C. of
D. in
答案：B