Sentence 1: I was rushed into my dental appointment yesterday. 
 Sentence 3: He shrugged and gave me a big smile 
 Sentence 4:  He said he didn't have time to wash his hands after peeing 
 Sentence 5:  I hope he was joking on that one 
 Option 1: I apologized to my dentist for not having time to brush my teeth. 
 Option 2: I apologized to my dentist for having brushed my teeth so thoroughly.