My mother prefers to take a bus to her office________she has a car of her own．
| A．if | B．because | C．although | D．until |
________, the Internet was only used by the government. But now it’s widely used in every field.
| A．As usual | B．At first |
| C．After all | D．So far |
—You don’t have to make so much noise, do you?
—__________.
| A．Not at all | B．Never mind |
| C．I’m sorry | D．Better not |
The runner, Bolt broke the 100-meter and 200-meter records, he became one of the _____man in the world.
| A．fastest | B．heaviest |
| C．tallest | D．slowest |
Which of the following can we NOT see at the Olympic Games?
I carried the bowl with both hands________, so that I wouldn’t break it.
| A．carefully | B．happily |
| C．quickly | D．carelessly |