Which of the following sentences use correct end punctuation?
(a)-does this system track all parts ordering for the c45 model.
(b)-fire him. will you file these invoices?
(c)-when he became coo, ninheh asked to have his diploma from carnegie mellon placed next to his picture in the hallway.
(d)-our workgroup is going to lunch with the division manager next monday, aren’t we?

Which revision, if any, best fixes the bolded (capitalized in this case) part of the sentence? female cardinals, a somewhat drab bird compared to the males, blend in well with their environment. no change somewhat drab birds a somewhat drab's bird somewhat drab bird's

Read the excerpt from the land. of my brothers, i was closest with robert. i suppose, in part, being the same year's children made us close, but there were other things too. we had been together practically since birth, and we always took care of each other. when i got into trouble, robert was there to pull me out of it if he could, or at least to see me through it, and i did the same for him. the passage provides evidence of why paul and robert have physical conflicts. paul and robert avoid social conflicts. paul is the least influenced by robert. paul is motivated to ask robert for .

If chopin were your music teacher, what techniques would he probably expect you to develop and practice? use details and information from the passage to explain your answer.