Many countries are increasing their use of natural gas, wind and other forms of __________.
—Are you all right?—________.
My goodness. How lucky we are! If there had been places for us on that aero-plane, we ________dead now.
On flight would be delayed, we made other arrangements.
Because of climate change, the ice that polar bears depend on for survival .
—Did you tell Jack that you’d already got a job?—Oh, no. I forgot. I him now.