<p>27 . Someone who uses a personal computer (to perform) only (such tasks as) word processing and sending e-mail (need not) buy the (most advanced) model available on the market.</p>
<p>The answer is E but why it is not C (need not ) Someone is singular and I think C should be (does not need to) ?</p>
<p>29.Quincy took Dan to Derek`s home for a visit ,never imagining that five years would pass before (seeing) Derek again</p>
<p>Why (seeing) is wrong ?</p>
<ol>
<li><p>E is correct. ‘need not’ is absolutely fine here.
Example:
You need not slog all day.
He need not work so hard. These are correct. Getting the flow?</p></li>
<li><p>It should be ‘before he saw/before he would see’.</p></li>
</ol>
<p>Lol never have i seen this ‘‘need’’ construction before</p>
<p>The case depends on the way in which the verb “need” was used. If the need was used as a main verb, yes, you need to conjugate it. But, here, the verb “need” is used as an auxiliary verb, so it does not and will not need to be conjugated. The key thing to note is that usage as a main verb requires to (i.e. He needs TO go to the bathroom) whereas the usage as an auxiliary verb does not require to (i.e. He need not go.). </p>
<p>Hope this helps.</p>