2nd option, Not all situations are appropriate times to use cell phones. I took the test and it showed me that i got it right and this is the right answer you guys. Hope this helps!
Constellations, groups of stars, provide astronomers with a roadmap of the galaxy.
Answer:
groups of stars
Explanation:
Groups of stars is a nonrestrictive <u>appositive phrase</u> that provides additional information about the noun <em>Constellations</em>. It is set off with commas because the information it provides is not necessary for identifying the noun it describes.
Answer:
They think she is harder to fool than other babysitters
Explanation:
Its in the book