Answer:
to show how gases move under the force of a black hole
Answer:
C
Explanation:
An author will give a reader more information about a character by explaining social status. Here the reader will get to know the character. The information is mostly written at the summary of the article. Here it explains shortly about the character behavior doing and all others matter concerning the character.
Answer:
past perfect continuous tense
Explanation:
it is past perfect continues tense
search for his structure and see that again too
