Answer:
Schools in the US have changed a lot over the years. Chalkboards have been updated to whiteboards and Smart Boards. Notebooks and textbooks have been replaced with laptops and iPads. Segregation was overturned by the Supreme Court, and students are demanding safe schools free of gun violence from today's lawmakers.
Explanation:
There are no commas in that sentence. A comma is only used to separate clauses when coupled with a conjunction, or in listing.
It is like person or place it bit like a noun a noun is a name place or thing
As a sign of homage for the late president, government flags will be flown at half-mast today.
