—Did you watch the cartoon film Astro Boy in the People’s Theatre last night？

—I had planned to, but it_________hard all the time.

A．is raining

B．was raining

C．has rained

D．rained

已知a、b互为相反数，c、d互为倒数，m的绝对值是5，n是最大的负整数，求代数式2011（a+b）﹣4cd+2mn的值。