He ______ on the bed_____ to his parents that blackbirds had_____ their eggs on Mars.A. lay; lying; lied B. lied; lied; lied C. laid; laid; laid D lying; lied; laid
I don't doubt ________ he'll come.
Why the explosion occurred was ____the laboratory attendant had been careless.
They came to the conclusion ________ by a computer.
________ is no reason for dismissing her.
Mary is ________ someone might recognize her.