— I’m sorry to tell you that you made a mistake in your test.— How can that be? I did it _______ in class.
—Why does Thomas speak through every discussion but never listen to the others?—That's what he ________ do. We used to hate that, but are used to it now.
________ the arrival of the police, I would have been robbed by two masked men.
I know that it will be difficult to pick him out in such a crowd, but if you ________ happen to see him, give him this packet.
She didn't come to the party last Sunday. ________, she must have made the party more exciting.
Students ________ remain in their seats until all the papers have been collected.