Answer:
I believe the answer is B because a participle is something that is going or has been. In this case they want to learn karate NOW so now is the going word
C. the singing crickets kept us up
Explanation:
participle is a verb used as an adjective
participle is :
a verb used as an adjective
the singing crickets kept us up
singing is a verb BUT
here its used as an adjectives
it describes the crickets
