Ameliorate Sharecropping

Directions: Students should ameliorate the following sentence, in red. There are 4 missing commas and a missing period.

Sharecroppers were assigned a plot of land to work and in exchange owed the owner a share of the crop usually one-half at the end of the season the owner typically provided the tools and farm animals.

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SUGGESTED ANSWER: 
Sharecroppers were assigned a plot of land to work and, in exchange, owed the owner a share of the crop, usually one-half, at the end of the season. The owner typically provided the tools and farm animals.