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Commas 3

Video: Comma story - Terisa Folaron, from TedEd (new tab). (Watching time: 4m:59secs). Content: Commas used with conjunctions and subordinates.

Instructions: Hover or tap the questions below to see the reason for the answers given in the quiz.

1. Select the option that successfully corrects the error in the sentence below.
Over the past few months I've had a problem with drinking I need to take measures to address that.

Over the past few months, I've had a problem with drinking, and I need to take measures to address that.
Why: This lesson explains how a comma is used before a conjunction to link two independent clauses in a sentence. In this case neither clause is subordinate to the other, so there should be a comma separating them.

2. Change the punctuation and add a joining word to make these two sentences into one sentence.
Sentence 1: We have been in a relationship online for 6 years.
Sentence 2: I have never met her in person.

We have been in a relationship online for 6 years, but I have never met her in person.
Why: This grammar is about using commas and conjunctions to make a complex sentence out of two simpler sentences.