The number of the cranes is getting _______

题目：

The number of the cranes is getting ________ . If we don't help them, they will disappear ________
a few years. [ ]

A、fewer and fewer; in

B、larger and larger; after

C、 more and more; after

D、smaller and smaller; in

【答案解析】显示答案解析

这里显示答案和解析