The plane is due to take off at 7:50from the airport.–________ we fail to arrive there intime. –Try to take another flight then.

We must accept the possibility ________ one, althoughworking hard, may fail to reach his goal.

We like______, but we don’t like _______.

All of us can see some _______in this picture. Which is NOT right

Marry, I think you have left your umbrella in the restaurant.–Oh, so I have. Igo and fetch it at once.