Answer:
Identify the bold subordinate clauses as noun, adverbial, or relative.
When Olivia returned from her week-long summer vacation, all her flowers had wilted.
adverbial
Joe's parents will be happy with whatever college he chooses to attend.
noun
Did you know that Halley's Comet appears once every seventy-six years?
noun
The Chinese conversation classes that I took in college have proven to be very beneficial.
relative
Although you protest, I will not change my mind.
adverbial
The student who graduated as valedictorian has a reputation of putting forth her best effort in all her activities.
relative
Explanation:
