Burning all the lights in the classroom will be a great______ on electric power.
A. waste B. lack C. drain D. damage
Burning all the lights in the classroom will be a great______ on electric power.
A. waste B. lack C. drain D. damage
C
drain “消耗”，常与介词on连用。A“浪费”，为不可数名词；B‘“缺少”；D“损坏，损害”。