Question

The rich only___themselves in making money and had no eye for the needs of their workers, A occuped

B conerned 请问 concern oneself in 也有忙于 关心的意思 为什么不选B

Answer 1

concern oneself about/in/with
give one's attention to；worry about关心；关怀；担忧
*We must concern ourselves with state affairs．我们必须关心国家大事。
*Don't concern yourself about his opinion．不要管他的意见。
*A good leader concerns himself in the welfare of his comrades．一个好领导总是关心他的同志们的福利的。

concern oneself in
不用的原因是是这个词汇常用于褒义。
另外后面常接的应该是名词。

The rich only__occupied_themselves in making money and had no eye for the needs of their workers
==富人忙于赚钱，是不会关心他们工人的利益的。