"The space shuttles is the subject."
Simple formula: find the verb of the sentence then ask the question "who or what performs the verb" and the answer to that question is the SUBJECT of that sentence!
In your sentence; ask the question;
"Who or what have made travel to the International space station convenient and possible?
Answer: The space shuttles (that's your subject)
I think it’s “the newest” or “newest”
He wanted to a be person with the white flap.
B) Yes, because it highlights the importance of volunteers to the growth of the organization.
