When_____the accident________?
| A．was; happened | B．has; happened | C．was happebeing | D．did; happen |
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 |
There is more than __________ rain this year,so some parts of the country have been flooded.
| A．extra | B．plenty | C．adequate | D．little |