Whichofthefollowingaboutthepassivevoiceistrue?

Whichofthefollowingaboutthepassivevoiceistrue?
A.Thepassivevoiceisagrammaticalconstruction.
B.Thesubjectofasentenceorclausefeaturingthepassivevoicetypicallydenotestherecipientoftheaction(thepatient)ratherthantheperformer(theagent).
C.ThepassivevoiceinEnglishisformedperiphrastically:theusualformusestheauxiliaryverbbe(orget)togetherwiththepastparticipleofthemainverb.
D.“Begiven”isapassivevoicestructure.
正确答案：ABCD