Los Angeles Times reported that researchers may have found a way to _________ human life by changing certain genes, so that humans might expect to live twice as long.
| A．extend | B．preserve |
| C．multiply | D．transform |
______ different China is from the one _______ it was 60 years ago
A．What a：that B How；that C What a；which D How；which
— Hi．George，can I use your lorry for a while tonight?
一Sorry．______．
| A．It，s repaired | B．It has been repaired |
| C．It，s under repair | D．It’s under being repaired |
Most parents take strong views against computer games which children are——to and
appeal to the closing of all net bars for such games
| A．addicted | B．accustomed | C．available | D．sensitive |
With the development of the central and western China，more and more modem cities have
——in what was a wasteland ten years ago
| A．built-up | B．sprung up | C．grown up | D．risen up |
his work these days，he hash’t _____ when to pay a visit to his parents·
| A．Bent On：decided on | B．Worried about；turned on |
| C．Faced with；taken on | D．Devoting to；focused on |