Question

Which sentence shows the correct use of commas with clauses?

Having finished his exam, Mark, left the testing center.
After I mowed the lawn, I took a dip in my friend's pool.
The rain, falling heavily, my friend and I ducked into a coffee shop.
In the morning, after breakfast, Kevin took his dog for a long walk.

Answer 1

The correct one is "After I mowed the lawn, I took a dip in my friend's pool."
So the right answer is B.

Answer 2

After I mowed the lawn, I took a dip in my friend's pool.

** Introductory clauses are followed by a comma.