一个填空题

looking after

注意：require doing (需要被做) = require to be done

应该填looking after
例句与用法:
The floor requires washing.
这地板该洗了。

looking after

The dog requires to be looked after.
先指出require后面应该加s.
require的用法是require to do sth.,而这句主语是动物，需要被照顾，所以用被动语态，require to be done,把done换作look，则为require to be looked after.

我认为是being looked after钩狗它自己还是不能够自己照顾自己的