Very important question

Test Preparation SAT Preparation
1

<p>1) significant factors to include in the budget when (buying) a car are the costs of fuel and maintenance and the insurance payments.</p>

<p>2) Ms. Kovan proudly displayed her research group's most ingenious invention, a vacuum cleaner that emptied its own dust bag when (pressing a button).</p>

<p>1) why is when buying correct in the first sentence and when pressing a button wrong at the second sentence?</p>

2

<p>In the second sentence, the way it is worded means that the vacuum presses its own button to empty the dust bag. The correct wording would be “… emptied its own dust bag when the user presses a button” or “… emptied its own dust bag when a button is pressed”</p>