—Are you pleased with what he has done?—It couldn’t be. Why didn’t he put more effort into

问题补充：

—Are you pleased with what he has done?

—It couldn’t be. Why didn’t he put more effort into his work?

A. any worse

B. much better

C. so bad

D. the best

答案：

(答案→)A. any worse

B. much better

C. so bad

D. the best

解析：因为It couldn’t be any worse. 意为“(他的工作做得)非常差”，与后文内容相符。