—Listen! Peter is singing in the classroom! —It _____ be him. He has gone back to his hometown.
Nancy doesn’t like to argue_____ others ________the boring things.
Can you tell me what to _________?
----Do you know how toa crying baby? ---Sorry, I don’t know . I think it’s too hard.
----Must he finish the work before supper? ----No, he . He finish it after supper.
_______useful the dictionary you gave me last week is!