Answer:
1) We go to my grandmother's house every year for Thanksgiving.
2)He said he was not superstitious, but he carried a rabbit's foot for good luck.
3)He complained that the meeting wasted everyones' time.
4) Gladys' favorite ice cream is pistachio.
The above sentences demonstrate correct apostrophe usage.
For other sentences, the correct sentence would be
1) Is that Jake's umbrella or is it yours?
2) Alex's dogs ate all their treats.
Explanation:
Possessive nouns show ownership of something. In most cases, you make a singular noun possessive by adding 's. You can make a plural noun possessive by adding an apostrophe at the end of the word.