问题补充：
The number of the giant pandas in China is getting , but the red-crowned cranes are .
A. more and more; more and more
B. larger and larger; fewer and fewer
C. less and less; smaller and smaller
D. smaller and smaller; fewer and fewer
答案：
A. more and more; more and more
(答案→)B. larger and larger; fewer and fewer
C. less and less; smaller and smaller
D. smaller and smaller; fewer and fewer
解析：句意：虽然中国大熊猫的数量正在越来越大，但是丹顶鹤正越来越少。more and more 越来越多；larger and larger越来越大;fewer and fewer 越来越少，修饰可数名词；less and less越来越少，修饰不可数名词; smaller and smaller越来越小。修饰number用形容词large/small.故排除AC两项。前后表示转折关系，前一句表示多，后一句表示少。故选B。
