The correct choices have been provided below:
The apostrophe can be used in most cases to distinguish singular from plural words. It can also be used to indicate ownership.
In the sentences above, the words have been correctly indicated with apostrophes. In the first sentence, the use of the apostrophe shows that the assistance was rendered by Mr. Huang.
Learn more about the apostrophe here:
https://brainly.com/question/17942576