yes
No apostrophe is to be putted in this sentence.
You don't have an apostrophe in your sentence. You don't need one either.
No.
When you select it, it removes every apostrophe in the story.
In this sense, it would be master's degree program.
He received a recommendation for his efforts.She asked for an employee's recommendation for a dessert to buy.
Yes. 'Its' in that sentence is short for 'it is' so it should have an apostrophe.
It depends on the sentence. If it's a contraction of the words "it is" then there is an apostrophe. (See this sentence for an example) If it's to indicate possession it doesn't. (Ex: The old coat lost its button.)
No, you do not need an apostrophe in that sentence. "Cousins" is used as a plural noun, not a possessive, so no apostrophe is required.
No apostrophe needed in the sentence "The turkey has two ears."
Yes, the sentence should have an apostrophe to denote possession. It should be written as: "Linda and her vice presidents' are going to Brazil."
The apostrophe in the word Billy's means Billy's ownership of something.