"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:
First break When Lizzie and end at putting one foot forward, the 2nd piece starts at Lizzie occasionally would, then 3rd piece is the last.
Explanation:
The use of blank verse enjambment intensifies the contemplative ad meditative of the poem. Blank verse allows for freedom of form enhancing the tone of the poem which shifts from being hopeful to being hopeless
the use of enjambment helps hold the readers interest across line: to him in the love of nature holds communion with her visible forms she speaks a various language for her gayer hours