— Excuse me, what is Nick doing?
— Look! He ________ flowers outside.
A . waters B . watered C . is watering D . has watered
C
【详解】句意: —— 打扰一下, Nick 正在做什么? —— 看!他正在外面浇花。
考查动词时态。根据 “what is Nick doing” 及 “Look” 可知,此处用现在进行时 be doing 的结构,故选 C 。