______ a good result，the professor decided to do the experiment once more．
| A．Not getting | B．Getting not | C．Not having got | D．Having not got |
— Any advice about this trip?
— Well, no food is available on _____ island so make sure you bring _____ packed lunch and drink, as well as your camera and sunblock.
| A．an, the | B．the; a | C．the; / | D．an; a |
Until the noise of the bus , we were able to hear the program again.
| A．died from | B．died off | C．died away | D．died out |
The building is carefully designed so that everyone can leave the building safely if an accident.
| A．increases | B．raises | C．rises | D．arises |
Nowadays many parents from the countryside cannot afford to educate their children, because the schoolare too high.
| A．fees | B．prices | C．charges | D．fares |
We can’tagainst other countries in trade if we don’t develop our national economy(经济).
| A．attack | B．bargain | C．compete | D．replace |