A compound verb is a verb that is composed of multiple verbs: this means that there are multiple parts in the verb
The answer is a) and the compound verb is highlighted below:
a. Your brain helps you to take a test.
In c) there is a compound predicate: thinks and controls
Answer:
1. A - made off
2. B - on
3. A - having stolen
4. B - to have caused
5. B - in favour of
6. A - have committed
7. A- from
8. A - to get into
9. A - of
10. A - have been guarding
11. B - illegally
12. A - at speeds
13. B - under the circumstances
Explanation:
Active, it would be passive if it were: the town was invaded by zombies