These flowers ___.Let's get some water .

问题描述:

These flowers ___.Let's get some water .
A.need to watered B.need watering C.have need watered D.are watering
,为什么?

need to be done =need doing sth.
A应为need to be watered 少be
C时态 语态都不对,应用一般现在时
D语态应改为被动
故只有B对