Sentence 1: Silvia didn't like her class partner. 
 Sentence 3: She went to her teacher and told him she'd work alone 
 Sentence 4:  The teacher refused 
 Sentence 5:  So Silvia had to do double work to pass her class 
 Option 1: He would take all the workload, and was bossy. 
 Option 2: He never shared the workload and was very lazy.