问题补充:
—What are you doing,Mum?
—I amthe carpet in order to get rid of the dust in it.
A. beating
B. hitting
C. striking
D. patting
答案:
(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。