The CDs are on sale! Buy one and you get_____ completely free.
| A．other | B．others | C．one | D．ones |
_______ a dark night, they took the sick boy to the hospital. And after an hour’s curing, the boy was out of danger very soon.
| A．With | B．At | C．On | D．In |
.As we all know, the UK ________ four parts: England, Scotland, Wales and Northern Island.
| A．is consisted of | B．is made  up of |
C．is made of | D．consists |
In_____________1860s, the Italian archaeologist Giuseppe Fiorelli was made___________director of the Pompeii dig.
| A．the; 不填 | B．the; the | C．不填; 不填 | D．不填; the |
Make sure that your computer room is 100% ________ of insects because they can really cause trouble to your machine.
| A．absent | B．rare | C．free | D．short |
Things lost sometimes just turn up ________ you never expect to find them.
| A．unless | B．where | C．after | D．as if |