These tress ________ and also ____________.
A.need trimming(修剪); need to water
B.need to trim; need watering
C.need trimming; need watering
D.need be trimmed; need be watered
网友回答
C解析考查need的用法，need doing=need to be done“需要被…”,四个选项只有C符合，句意是：这些树需要修剪也需要浇水。