<p>I got these questions wrong while practicing, and can't understand the reasoning behind the actual answer. If someone could explain them to me, that'd be greatly appreciated.</p>
<p>Q: Conflicts between land developers and consevationists have repeatedly (arose), (causing) Congress to reconsider legislation (that prohibits) building (within habitats) of endangered species. (No error)</p>
<p>A: (arose)</p>
<p>Q: (Surely) one of the most far-reaching changes in the nineteenth century (will be) the change from working (at home) (to working in) the factory. (No error)</p>
<p>A: (Will be)</p>
<p>Q: (Quick to) (take advantage) of Melanie Johnson's (preoccupation in) the history of the Johnson family, the geneologist proposed investigating (that) history-- for a large fee. (No error)</p>
<p>A: (preoccupation in)</p>
<p>Q: (Contrasting with) (most other) fifteenth-century rulers, Portuguese kings (could count on) the support of the aristocracy (in any) overseas ventures. (No error)</p>
<p>A: (Contrasting with)</p>
<p>I'm especially confused with the second and last questions. Thanks again!</p>
<p>First question -> “arose” becomes “arisen”, the sentence calls for the past perfect, not the past simple.</p>
<p>Second question -> “will be” becomes “was”. We are not talking about the future in any portion of this sentence. It wholly relates to the nineteenth century, in which a change already took place.</p>
<p>Third question: “preoccupation in” -> “preoccupation with”. Misuse of a preposition.</p>
<p>Forth question: “contrasting with” -> “contrasting to”. Misuse of a preposition.
Read this for more elaboration: Taken from the Dictionary of American Idioms And Phrasal Verbs <a href=“McGraw-Hill”>U</a> </p>
<p>contrary to something
in spite of something that seems to suggest otherwise; regardless of something else. Contrary to what you might think, I am neat and tidy. Contrary to public opinion, my uncle is well and healthy. </p>
<p>contrast with someone or something
- to be different from someone or something. Bill’s cheery attitude really contrasts with the gloom of his twin brother, Bob. This stiped tie really contrasts with that polka-dot shirt. 2. [for a color or pattern, etc.] to show a marked difference with or complement another. The black one contrasts nicely with the white one.</p>
<p>Oh. I seem to have forgotten that the 19th century already happened. Derp. But thanks a lot!</p>