Question

In which sentence are commas used correctly?

Lighter fabrics should be worn, after the winter training season.


Runners should choose the proper shoes, and socks.


Wool is warm, but synthetic fibers are more water resistant.


The proper equipment is important, when athletes train outdoors.

Answer 1

Wool is warm, but synthetic fibers are more water resistant.

This sentence is correct.

Answer 2

The answer is: Wool is warm, but synthetic fibers are more water resistant.

There are several rules to use the comma, for example, separate a list of items or two independent ideas, here we are going to use the rule where you place a comma before the coordinating conjunction “but”, when you use this conjunction in a sentence it should be added a comm before it.