It is useful to be able to predict the extent _______which a price change will affect supply and demand.
—Henry, the phone is ringing . Do you want me to go? —No, sit still. ______.
I phoned my first teacher time and again when I heard that he was ill, yet couldn’t_______
The problem just________to be discussed at the class meeting tomorrow.
Your mother _______, however, say that to us that day.
Kate’s little brother kicked the ball to the river; she took great trouble to get in _______the river.