To which sentence from the paragraph can we add the following clause? ..................................................... ,so that he had plenty of time to get ready. [1]Everyday, Ahmad woke up one hour before the school bus arrived. [2]First, he spent about fifteen to twenty minutes to wash up and dress. [3]Then, he spent about twenty minutes to pack breakfast, lunch, tea, and a snack in a bag to bring with him. [4]Before walking out of the door, Ahmad always checked his bag to make sure he didn't forget anything .