Sentence 1: Mark wanted to buy a new laptop. 
 Sentence 3: He tested different ones and found the one he liked 
 Sentence 4:  Then he went home and found the best deal online 
 Sentence 5:  He got it within a couple of days and was really happy 
 Option 1: He went to the electronics store to check some out. 
 Option 2: He sat on his computer and searched online.