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A student needs to edit her draft of a how-to essay.

Click to highlight two sentences that have errors in grammar usage.

Last Saturday baking brownies, my grandmother decided to teach me the secret family recipe. She is the only person who knows the family’s secret brownie recipe. First, we had to melt sugar and chocolate. Next, we mixed the dry ingredients. Finally, we combined the mixtures together, making the brownie batter. We spread the batter in the baking dish, and within minutes, the smell of chocolaty-sweet goodness filled the kitchen. While cleaning up the dishes, the brownies finished baking.