It was not until Tom took off his dark glasses that I _____ him.

The rescuers _______ to work as soon as they arrived at the spot of the accident.

—The heavy snow hasn't caused any inconvenience to people in Nanjing, has it?—Yes. Just imagine the city ________ with nearly 20 centimeters of snow one night.

(2014·江苏苏州六校联考)The train moved slowly from the station，but________speed as it reached the open country.

We have made up our minds that we’ll go to Wales for our summer vacation, but we still have not ___________________ when we’re going.