London's taxis are regarded as ________ best in the world，and New York's yellow taxis came ________ second，according to an annual taxi poll.
| A．the；the | B．the；a | C．/；the | D．the；/ |
After dinner the minister made a short _____ to the guests.
| A．delivery | B．pronunciation | C．conversation | D．speech |
. Deserts, dry areas with _____ no vegetation, cover more than one-third of the Earth's land surface.
| A．surprisingly | B．eventually | C．permanently | D．virtually |
All too _____ it was time to go back to school after the glorious summer holidays.
| A．often | B．fast | C．soon | D．late |
The rainbow _____ as the sun came fully out from behind the clouds.
| A．dissolved | B．removed | C．resigned | D．disappeared |
The car salesman took the customer for a driver in the new model in order to _____ its improved features.
| A．advocate | B．demonstrate | C．exhibit | D．reveal |