A professor of biology gave a talk to more than 1000 students on elephants living conditions and the dangers _______ them.
| A．face | B．facing | C．faced | D．are facing |
27. Yang Liwei was picked from the 14 candidates for the Chinese space adventure and became China’s first astronaut _______ his great efforts.
| A．according to | B．as well as | C．due to | D．together with |
26. Our school volleyball team has _____ their training to prepare for the coming match.
| A．stepped up | B．stepped to | C．stepped into | D．stepped on |
25. — Shirley won the first prize in the English speech contest.
—Woo! ________ she has made since the beginning of this term!
| A．What great progress | B．How great progress |
| C．What a great progress | D．How great a progress |
24.The students were ____ over the ____ problem, listening to the teacher with a ____ expression on their faces.
| A．puzzled; puzzling; puzzling | B．puzzled; puzzling; puzzled |
| C．puzzling; puzzling; puzzled | D．puzzling; puzzled; puzzling |
23.The country life he was used to ____ greatly since 1992.
| A．change | B．has changed | C．changing | D．have changed |