The American’s long-time painful work finally , for he broke the Guinness World Record for Hula-hoop Spinning(转呼啦圈).
Some insects_______ the colour of their surrounding to protect themselves.
—We’ve spent too much money recently.—Well, it isn’t surprising, Our friends and relatives_______ around all the time.
Joining the firm as a clerk, he got rapid promotion, and _______ as a manager.
It seems that living green is _______ easy and affordable. A small step makes a big difference.
The factory used 65 percent of the raw materials, the rest of which _______ saved for other purpose.