The days are gone _____ physical strength was all you needed to make a living.

The terrible train crash in Wenzhou has shaken the country, not only causing the loss of lives, but also ________ people ________ confidence in the rail system.

Hi, Torry, can I use your computerfor a while this afternoon —Sorry. .

Edison asked his father why the hens could hatch eggs ___he couldn’t

you may have, you should gather your courage to face the challenge.