Five thousand of them, to be exact. Hundreds of those “errors” were in only one passage, where an editor had added commas to what was supposed to be one long, unpunctuated sentence.

Double-check your facts. -Look out for spelling, grammar and punctuation mistakes. Hello, I’m Mrs. Hudson and here are my top tips to help check your sentences to see if they make sense.

Comma splices are common mistakes in written English, and they are frequently tested on the ACT and the SAT. However, they can be fixed in several simple ways: by changing the comma to a period ...