When writing a cover letter should I write Sincerely at the end of the letter or not?

What do you think is the greatest invention that you use today? explain in 4 sentences

Need answer asap plz! in “ode to the west wind,” which image best expresses the speaker’s hopes for the west wind? a. “scatter, as from an extinguished hearth / ashes and sparks . .” b. “make me thy lyre, even as the forest is . .” c. “. . he lay, / lulled by the coil of his crystalline streams . .” d. “if i were a dead leaf thou mightest bear . .”

Why did orson welles change the beginning of the war of the worlds for his radio broadcast? a. to capture the attention of his listeners, who may have been doing other things b. to get around copyright laws associated with using material from a published book c. to ask members of the audience to call family and friends and encourage them to listen d. to remind listeners to call police for more information