单选题 I couldn't sleep last night because the tap in the bathroom was ______.
A. draining B. dropping C. spilling D. dripping

【正确答案】 D
【答案解析】[解析] drip常表示“(水珠、水滴的)滴落、滴下”,如:The umbrella dripped moisture.伞滴着水珠。drop也可指“滴下,落下”,但一般侧重于从较高地方或位置落到较低地方或位置。