How do you use the word that's in a sentence?

Answer 1

"That" is a pronoun, like "he," or "she," so what would determine it's necessity is whether the antecedent is clear (an antecedent is the noun replaced by the pronoun: "Jon was going to class but he wanted to eat first." Pronoun: "he," Antecedent: "Jon.")

In your sentence, I'm not actually sure what the antecedent is. I think it's what was clear, which would be the clause that follows "that." I don't think you need the word "that" to clarify what you're referencing, and for that reason, I would say leave it out (no need to be unnecessarily wordy).

Sorry I couldn't be more helpful. Good luck.

Answer 2

"I can't answer that question."

"What, this question?"

"No, that one."

That is my bike.

That bike was stolen.

The bike that was stolen was found at the school.

These are all sentences that use the word that.

*The word that indicates an item at a distant or unspecified location (that one), or a specific concept. Clauses using that are said to be "restrictive clauses" because they refer to one particular item or subject. When people are involved, the word who should be used instead.

Answer 3

"That," said Julie, "Is the strangest dog I've ever seen!"

also...

What is that cat doing in my bed?!

Answer 4

And that is the story of how I caught the Loch Ness Monster.

What is that doing on my shelf?

That looks extremely ugly.

Hey, that is my bike.