Indicate which of the following sentences has an illogical shift in verb tense that should be corrected:   1. While working on her report, my best friend lost her notes and came to me for help.   2. The customer demanded to see the manger ; he was angry.   3.  After I complete that writing class, I took the required history course.   4. At the start of WW2, Japanese Americans were sent to relocation camps because the government feared they might be disloyal.