I() my car to 50mph when I entered the highway.

• A. Accelerated
• B. Sped
• C. Increased
• D. Drove

Answer: (A)

Raising the vehicle’s speed to a specific value is described by the verb accelerate. In this context, accelerated to 50 mph fits naturally: I accelerated my car to 50 mph as I entered the highway. The other options don’t express reaching a precise speed as clearly. Sped would require phrases like sped up to or sped to and isn’t as idiomatic with a direct object. Increased isn’t used with a direct object like my car to indicate reaching a particular speed, and drove merely indicates moving rather than achieving a new speed.