长时间干旱耗尽了水库的蓄水量。

The prolonged drought ___depletes the water reserves in the reservoir.

过度捕捞正在耗尽海洋的鱼类资源。

Overfishing is ___depleting the ocean's fish stocks.

长时间的工作耗尽了他的精力。

Working long hours ___depleted his energy.