Nowadays people take___ exercise a day as they did in the past because of widely used automobiles.
As the sea ice melts sooner each swimmer,polar bears are forced to come ashore earlier and face food shortages _____ they have stored enough fat to last them through the season.
—What did he want to know,Anne? —_______I could finish writing the report.
Ladies and gentlemen,please fasten your seat belts,the plane______.
Without facts,we can’t form a correct opinion,for we need to have actual knowledge____ our thinking.
With a good ______ of both Chinese and English,she had an advantage over the other interviewees.