<p>While i was looking for some extra SAT grammar tips, I stumbled upon these unusual grammar problems.</p>
<p>(1)Puzzled, the children scratched their (head / heads).
(2)Many sons dislike their (fathers / father).
(3)The boys moved their (car / cars).</p>
<p>Supposedly both 1 and 2 require the singular head as opposed to heads, according to someone who stated he quoted this from an SAT prep book. He stated that a singular head is needed as opposed to heads because heads implies that the children had multiple heads each, which is clearly wrong.</p>
<p>Now that i think about it, I am not actually sure which is the correct answer.</p>
<p>----Off Topic ( still grammar related)</p>
<p>Could someone please refer me to a well versed site in the verb tenses and exactly when and when not to use them. I have searched google and found mediocre tense-related sites that do not completely explain each tense.</p>