Sentence 1: I went jogging this morning. 
 Sentence 3: He was driving on his way to work 
 Sentence 4:  I waved, but he didn't see me 
 Sentence 5:  I can't wait to tell him about this! 
 Option 1: While I was jogging a strange man began to follow me. 
 Option 2: While I was out jogging I saw a friend of mine.