According to a UN report, some 844 animals and plants __________ in the last 500 years.
| A．disappeared |
| B．were disappeared |
| C．have disappeared |
| D．had been disappeared |
Food and fruit are forbidden in the library, ______ you are allowed to have drinks and sweets with you.
| A．and | B．but | C．so | D．or |
Being ______ highly skilled reader is ______ key to becoming successful in the Information Age.
| A．a; 不填 | B．不填; a |
| C．the; a | D．a; the |
—Do you have jobs in your company?
—I’m afraid not. _____, we’ll tell you.
| A．If necessary | B．If any |
| C．If so | D．If possible |
That piece of music sounds quite good. Who _____ the piano upstairs?
| A．is playing | B．played |
| C．plays | D．has played |
____, Elizabeth is the most attractive person in the novel Pride and Prejudice.
| A．Bravely and prettily | B．Brave and pretty |
| C．Bravely and pretty | D．Brave and prettily |