How is the present tense different from the present perfect tense? A. The present perfect tense refers to action that started in the past and continues into the present
B. The present perfect tense refers to action that started and ended in the recent past
C. The present perfect tense refers to action that may or may not happen
D. The present tense refers to repeated action that is going on right now

Stone, two or three feet thick, the door of wood and iron, a foot thick, and the iron grating which strained the light, i could not being struck with the foolishness of that institution which treated me as if i were mere flesh and blood and bones, to be locked up. i wondered that it should have concluded at length that this was the best use it could put me to, and had never thought to avail itself of my services in some way. i saw that, if there was a wall of stone between me and my townsmen, there was a still more difficult one to climb or break through before they could get to be as free as i was. i did not for a moment feel confined, and the walls seemed a great waste of stone and mortar. i felt as if i alone of all my townsmen had paid my tax. — “civil disobedience,” henry david thoreau based on this passage, how did thoreau feel about his confinement?

When you go to the writing center for identifying problems in organization, logic, expression, and/or format, which of the following should happen?

How do the authors differ in the way they present the war in "facing it" and "ambush"?