Select the most appropriate meaning of the underlined idiom in the given sentence.

It took Rohan a long time to get the hang of the machine in the new factory.

Learn how to use

The most appropriate meaning of the underlined idiom "get the hang of" in the given sentence is learn how to use.

The other options are incorrect.

• "Bring someone to run" is not the same as learning how to use something. Running is a physical activity, while learning how to use something is a mental activity.
• "Clean and dry" is not the same as learning how to use something. Cleaning and drying are tasks that can be done to any object, regardless of whether or not you know how to use it.
• "Put up safely" is not the same as learning how to use something. Putting something up safely is a task that can be done to any object, regardless of whether or not you know how to use it.

The idiom "get the hang of" means to learn how to do something, especially something that is difficult or takes time to learn. So, in the sentence "It took Rohan a long time to get the hang of the machine in the new factory," it means that Rohan had to spend a lot of time learning how to use the machine.