Sentence 1: Ken forgot to take a bath yesterday, and didn't change his clothes. 
 Sentence 3: As soon as she got out, she noticed the shirt we wore yesterday 
 Sentence 4:  She asked why I'm wearing the same clothes and if I took a bath 
 Sentence 5:  Although I tried to lie, she wouldn't believe me 
 Given Sentence 2: Since he was waiting for his mom, he stood outside on the couch.