__________ the Internet is of great help, I don't think it's a good idea to spend too much time on it.
Many lifestyle patterns do such great harm to health that they actually speed up ______weakening of the human body.
—Ken, ______, but your radio is going too loud.—Oh, I'm sorry.I'll turn it down right now.
Thousands of people _______ to watch yesterday’s match against Ireland.
The first time he had a dinner with some high officials, he felt _____ uneasy.
_____ that the government can lead them out of the financial crisis, people are optimistic about the future of the country.