问题补充:
China sent up Shenzhou Ⅸ manned spaceship into space successfully, which shows science and technology rapidly in China.
A. have been developing
B. have developed
C. has been developed
D. is developing
答案:
A. have been developing
B. have developed
C. has been developed
(答案→)D. is developing
解析:本题考查动词的时态。根据句意,中国成功的发射神州9号载人飞船进入太空,这表明中国的科学技术正在快速发展。说的就是现在的情况,因此用现在进行时态更准确。science and technology作主语,谓语动词用单数,本题应该选D。