Answer:
Happy Teachers Day 2020: Top 50 Wishes, Messages, Images and Quotes to share with your teachers to make them feel special
In the wake of coronavirus pandemic, all the schools have been closed for the last few months. With online classes, students and teachers will now be celebrating Teachers' Day 2020 virtually. Every year, students prepare a speech for their teachers, to convey their wishes and gratitude. Even this year, students can prepare a speech at home, which can be performed online, during virtual celebrations. We are listing down some of the sample speeches that you can prepare this year:
"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)
Another term would be a synonym or antonym
