-Have you got all the lights __________yet?-Yes, everything is ready for the party.
Recently people have made great progress in using ____ power of nature to produce____ electricity.
Shortly after suffering from a massive earthquake and ________ to ruins, the city took on a new look.
Zhengzhou was attacked by such a terrible sandstorm ________ few residents had ever experienced before.
---- John ,why are you so upset?----I _________ my cellphone all morning but it is nowhere to be found.
She is a strong-willed woman and not once _______ in to any difficulty in her life.