<p>Please explain BB Pg 603 # 27. I get that it is A, but what is the reason behind it? And how do I pick on these type of errors in the future?</p>
<p>Any help would be appreciated</p>
<p>It would help if you posted the question. Not all of us have the money to buy the blue book.</p>
<p>the problem here is that "we" should be "us," since it's the object of the preposition "for." always check that prepositions have proper objects, and that pronouns are in the right case, and you shouldn't make this mistake again.</p>
<p>the subject pronouns are the following:</p>
<p>i, you, he, she, it, we, they</p>
<p>the object pronouns are the following:</p>
<p>me, you, him, her, it, us, them</p>