The number of the employees has grown from 1,000 to 1,200. This means it has risen ____ 20 percent.
| A．by | B．at | C．to | D．with |
It was just a __________ comment; I didn’t mean it to be taken so seriously.
| A．uniform | B．casual | C．humorous | D．formal |
Cycling is highly __________ to people’s health and the environment.
| A．fashionable | B．beneficial | C．changeable | D．suitable |
I’ve listened to Professor Smith’s talk about medicine,but I still haven’t got a good understanding of its key _________.
| A．notes | B．information | C．words | D．points |
It was becoming increasingly _________ that he could no longer look after himself.
| A．disgusting | B．changeable | C．transparent | D．apparent |
—She’s a lot older than you,isn’t she?
—Fifteen years,to be _________.
| A．frank | B．precise | C．honest | D．fair |