—What are you doing,Mum?
—I am the carpet in order to get rid of the dust in it.
A. beating
B. hitting
C. striking
D. patting
网友回答
(答案→)A. beating
B. hitting
C. striking
D. patting
解析：考查动词的区别。beat“连续的击打”；hit强调击中；strike 强调用力打；pat指用手或扁平物“轻拍”。只有beat符合语境。