The sentence. 'It could have been struck by lightning' can also be written as
ALightning could be struck it.
BLightning could have struck it.
CLightning could have been struck by it
DLightning could have struck by it.
ALightning could be struck it.
BLightning could have struck it.
CLightning could have been struck by it
DLightning could have struck by it.
Related Questions: