答案：B分析：responsible to=对…有反应。respons

答案：B分析：responsible to=对…有反应。responsible for=负责…改正：toàfor参考译文：在美国，联邦政府负责规范工厂里的工作条件。

Kết quả (Anh) 1:

Answer: b analysis: responsible to= ... Will respond. Responsible for= is responsible for ... Correction: to à for text: in the United States, the Federal Government is responsible for regulating the working conditions in the factory.

Kết quả (Anh) 2:

The answer: B Analysis: responsible to = to ... respond. responsible for = be responsible for ... correction: toàfor Passage: In the United States, the federal government responsible for regulating working conditions in factories.

Kết quả (Anh) 3:

Answer: B analysis: to= responsible on... Have reaction. For= responsible is responsible for... Correction: to, for in the United States, the federal government is responsible for regulating the working conditions in factories.