When Ah Fo reached his home, elated by his rare fortune, he packed up his small

Rare Fortune

Explanation:

Context clue is the additional information provided by an author that can help a reader understand a word more clearly. It can be in the form of an explanation, an example, synonym, antonym, word-structure, etc.

In the given expression, elated means that Ah Fo felt very happy and excited at his prospect probably because it had never happened to him before.

Rare fortune means an event that is incomparably good. It could work as an adjective to describe an event which hardly occurs. It provides an explanation as to why Ah Fo was excited. Something very good had happened to him.

And in walked my sister. (enough said)

Explanation:

In walked my sister. She wanted to play with me AGAIN! I was trying to do my homework and she followed me all the way upstairs. That kid is a wiz at this sneaking stuff I tell ya! I hid under my sheets, but she stll saw me. oH sNaP I have to find somewhere else to hide quick! She ran into the hall- "MoMmY! SHES NOT PLAYING WITH M" Where to hide!? I think I should pack some stuff and go into hiding. - no  time! - Shes coming back into the room! I quick snatched up my phone and computer, and dashed under my bed. Some days I really don't like having siblings.

Hope this helps! :)