It's in passive voice.
A good rule of thumb for cases like this is that if it has any variation of the verb "to be" (is, was, were, etc.) it's passive voice.
If you wanted to switch it to active voice you need to get rid of "is", and this is usually done by switching the subject and the object (so while in the original sentence, the race car is the doing the verb, to switch it you'd need to make the sixteen-year-old boy be the one doing the verb). This new sentence would be something like:
The sixteen-year-old boy drove the racecar
Answer:
Important to determining what the message of the story is or what it's about.
Answer:
reduced in number and variety
Explanation:
scale down something, you make it smaller in size, amount, or extent
With context: "Years ago I was in a small town and went into a cafe and ordered cake: that was the best cake I ever tasted." ->you have not tasted any cake better than that up to and including the time you spoke - it is still the best cake.
Also called Anglo-saxon, language spoken and written in England before 1100; it is the ancestor of Middle English and Modern English. Scholars place Old English in the Anglo-Frisian group of West Germanic languages.
