This is my sisters SATS question in her preparation book however the top box doesn't make sense as it says that "for singular and plural nouns that DON'T end in an S and apostrophe s" however the example shows the word bus's.this ends In s?! Is this a mistake or is this some sort of exception?
many thanks!

Select the dangling modifier in the paragraph. yesterday was a rough day. running for the bus, the rain began to pour. then, at guitar lessons, i had to play a song i hadn’t practiced. while walking home, i turned my ankle. my swollen ankle caused me to limp.

In things fall apart, how does ikemefuna's presence change nwoye? nwoye begins to disobey his mother and other women. nwoye becomes aware of his responsibilities as a male. nwoye begins to enjoy tasks he previously disliked. nwoye learns to show the proper respect for his father.

Read this excerpt from “the love song of j. alfred prufrock” and answer the question. let us go, through certain half-deserted streets,  the muttering retreats  of restless nights in one-night cheap hotels  and sawdust restaurants with oyster-shells:   streets that follow like a tedious argument  of insidious intentwhat does the use of the word  muttering  suggest? a feeling of discontentthe noise of city streetsthe inability to be understooda sense of lonelinessit's not c so hel0