Sentence 1: Gina entered her classroom and went to her desk. 
 Sentence 3: Rita, and Mary weren't talking to Gina 
 Sentence 4:  Gina only had Tami as her ally 
 Sentence 5:  The fact that Tami was still talking to them made Gina uncomfortable 
 Option 1: Her enemies are at their DEsk. 
 Option 2: Her friends were already at their desks.