A-A+
As a policeman Mr. Brown thought that he had
问题详情
As a policeman, Mr. Brown thought that he had a duty to ______ the lost children in finding their homes.
A．assist
B．help
C．provide
D．support请帮忙给出正确答案和分析，谢谢！
参考答案
正确答案：A
解析：assist“协助”，用于句型assist sb. in doing sth.；help“帮助”；provide“供给，提供”；support“支援，帮助支持”。
