Ameliorate the Domino Theory

 

Directions:   grammatically correct the sentence below. There are three missing commas. 

The Domino Theory popular from the 1950s to the 1980s posited that if one country in a region fell to Communism then the surrounding countries would follow.

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suggested answer: 

The Domino Theory, popular from the 1950s to the 1980s, posited that if one country in a region fell to Communism, then the surrounding countries would follow.

Ameliorate Article 231

Directions: grammatically improve, or ameliorate, the following sentence. There are two missing commas.

Article 231 of the Treaty of Versailles known as the War Guilt Clause was a statement that Germany was responsible for beginning World War I.

Video about Versaille and Article 231

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