——Mum, I can’t help _____ some housework tonight. There’ll be a football match.—— All right. A doing B done C do D did
How to create enough jobs for the laid-off workers is a(n)________problem for which there is no simple solution.
—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 .