for his mistake the little boy could not but to his teacher that he was wrong.A. Blaming

问题补充：

for his mistake, the little boy could not but to his teacher that he was wrong.

A. Blaming; to admit

B. Blamed; admit

C. To blame; admitted

D. To be blamed; admitting

答案：

A. Blaming; to admit

(答案→)B. Blamed; admit

C. To blame; admitted

D. To be blamed; admitting

解析：考查非谓语动词做状语和固定词组：第一空是非谓语做状语，the little boy和blame是被动关系，用过去分词做状语，第二空是词组：could not but do只好做…，句意：因为错误被责备，小男孩只好向老师承认错了。选B。