Let's save pandas! There _____ only about 2,000 pandas living in the forests now.
本题考查There be句型的结构。主语是about 2,000 pandas，故对应的be动词是are。
— Is there any outdoor learning in your school?
— _____. We learn outdoors once or twice every month.
本题考查 there be 句型的答语。根据 "Is there…?" 的结构可先排除选项C和选项D；再根据答语中的“我们每月到户外学习一两次”可知，要用肯定答语，故答案为选项A。