"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)
Answer:
Cause it will help people and you earn money for it.
Explanation:
As you know being a police is risking your life, you get paid average but if you're a professional you get higher pays and on top of that, you can help the people around you with theyre problems and make sure your community is safe and make your parents proud.
Answer:
is it matters how you play the game not if you win or lose.
Explanation: