Hello!
"Quickly" is an adverb since it is describing the verb, "sped."
It answers the question "how did it speed?" - It sped <em>quickly</em>.
If you see someone with a tear in their eye, what do you assume?
Does the tear indicate that they are happy, sad, or indifferent? Choose the answer that is most likely the case.
Answer:
Dr. Naismith first planned to bring outdoor games inside, but they were too physical and cumbersome.
Explanation:
Eliminate repeated words.
Other comments:
'Two' is a number. 'Too' means extra or more than expected-- too many, too much, too late. . .
Two should not be too many to count!
Also be careful to use correct verb forms (planned) (were) to express past tense.