——Were you busy last weekend?
——Very. Rather than time playing cards as usual, I devoted every effort to an advertisement.
A. wasting; making
B. waste; make
C. to waste; make
D. a waste of; making
网友回答
(答案→)A. wasting; making
B. waste; make
C. to waste; make
D. a waste of; making
解析：本题考查短语devote oneself to doing something的用法，以及短语rather than要求句子前后保持平衡，所以本题应选择A。