Which sentence is punctuated correctly?
a. in first-period biology class we learned that, the ecosystem, is a fragile and sensitive thing.
b. the freshmen, were excited to hear about extra-credit opportunities in their algebra class.
c. getting her license proved to be more difficult and tricky, than she thought it would be.
d. in order to serve students best, school districts need to ask for additional funding.

Complete the paragraph about imperialism

Which historical events have affected the meals you consume? check all that apply. columbus brought sugar cane to the new world in the late 15th century. italian immigrants brought pizza to the united states in the early 1900s. tacos were first eaten in the silver mines of mexico during the 1700s. sugar cane spread throughout the muslim world, and methods were developed to refine it. immigrants introduced chinese food to san francisco in the mid-1800s. people from the middle east created the modern version of roasting coffee in the 13th century.

What does the excerpt tell about the narratos mental shift i suppose i shall have to get back behind the pattern when it comes night,and that is hard? @a.the narraor believes that the wallpaper is beatiful b.he believes that the woman in the wallpaper will attack him when he sleeps c.the narrator believes that he cant escape from the windws with the bars d.that the narrator was once behind the wallpaper