We've been told the good news, but when and where to go for theexciting paid vacation __________ yet.
| A．are not discussed | B．have not been discussed |
| C．is not being discussed | D．has not been discussed |
The author of the report is well _____ with the problems in the hospital because he has been working there for many years.
| A．acquainted | B．informed | C．enlightened | D．advised |
With the change of the economic foundation the entire immense superstructure is _____ rapidly transformed.
| A．anything but | B．more or less | C．at large | D．any more |
Even if they are on sale, these refrigerators are equal in price to, if not more expensive than, _____ at the other store.
| A．anyone | B．the others | C．that | D．the ones |
Evidence obtained from observation and experiment is often used to _____ a scientific theory.
| A．confirm | B．confine | C．conform | D．conceive |
Because of the strong sun Mrs. William’s new dining room curtains _____ from dark blue to gray within a year.
| A．faded | B．fainted | C．paled | D．diminished |