A)....several accident were reported and some people were enjured....
b)They were taken very ....
c)The mayor thought and he decided
d)Motorists were advised ...

a) The Vancouver canucks flew to toronto last night
b) They were welcomed .....; who accompanied them to their hotel.
there,they were served and a party was given.... they were beaten last years and they wanted a revenge.... they expected to win

Le sujet représente celui qui subit l'action
les groupes verbal sont formé de to be (conjugué au bon temps) + le past participle
be + past participle
dans une phrase passive, on met l'accent sur l'action subit par le sujet