问题补充:
of giant pandas is getting because their living areas are becoming farmland.
A. The number, larger and larger
B. A number, larger and larger
C. The number, smaller and smaller
D. A number, smaller and smaller
答案:
A. The number, larger and larger
B. A number, larger and larger
(答案→)C. The number, smaller and smaller
D. A number, smaller and smaller
解析:the number of 表示···数量,做主语时,相当于单数形式,a number of,表示大量的,作主语时,相当于复数形式。故选C