Really perplexing writing questions. Please help!

Test Preparation SAT Preparation
1

<p>Though best known as a jazz vocalist, he also enjoyed gospel music, (whereby) he told his manager that he wanted to make a recording of his favourite gospel songs.
Oxford advance: whereby=because of which. So why whereby is wrong?</p>

<p>Hero, if given the chance to revive the moment, would choose to (do it). Why do it is wrong?</p>

<p>Because they painted the scenes of life as ordinary people live it, (rather than) scenes from myths, many american artists differed from early times.
I cannot understand whats wrong with rather than and how to correct it.</p>

<p>One more question: what is the tense rules of uncountable nouns? For ex, fish, furniture, information, sheep... Sometimes i see they use singular, sometimes plural. Thanksin advance!</p>

2

<ol>
<li>“Which” often refers to a concept or a noun that is implied in the sentence. Hence, “whereby” or “because of which” can only be used when there is a concept or a noun being implied, for example: the means whereby he took his life. Now you can obviously see why “whereby” is inappropriate. </li>
<li>Again, “it” is pronoun replacing a specific noun mentioned in the context. Logically, in the sentence, “it” replaces “to revive the moment”; however, since “to revive the moment” is a phrase not a noun, “it” is being used inappropriately. Therefore, we should change “do it” into “do so”
I’m afraid i can only answer the first two questions</li>
</ol>