David must be excited about something and you can ______ it from the look on his face

Don’t take any measures on your own before you ____ your doctor if the pain continues.

The American’s long-time painful work finally        , for he broke the Guinness World Record for Hula-hoop Spinning(转呼啦圈).

After the heavy mudslide happened in Sichuan, hundreds of newspaper reporters were sent to ____ the natural disaster.

The number of the employees has grown from 1,000 to 1,200.This means it has risen ________ 20 percent.