Change the voice : He was watching T.V.
AT.V must be watched by him.
BT.V will be watched by him.
CT.V should watch by him.
DT.V was being watched by him
AT.V must be watched by him.
BT.V will be watched by him.
CT.V should watch by him.
DT.V was being watched by him
Related Questions:
Spot the error.
(a) When the military general was shot dead / (b)people were run / (c)here and there /(d) to save themselvses / (e) no error.