From the ________ look on his face, I knew that he must have been threatened by someone.
Henry broke the window. I’ll ask him why __________ .
I think it is necessary for my 19-year-old son to have his own mobile phone, for I sometimes want to make sure if he _____ home for dinner.
Will you please keep ________, Tom? Your father is sleeping in the room.
Five passengers were _____ in the traffic accident and they have all been taken to the nearest hospital.
—What do you think of my article, professor? —The former part is well written but _____ is just so so.