Look at the bingo board. There are nine sentences in nine boxes. Look at the small bingo board over the big one. There are three sentences having shortened words in three boxes.

You should write down six more senetnces containing contractions in the six boxes at random. I will read each sentence which doesn't have contractions. You should find the same sentence having contractions. If you have three circled sentences horizontly, vertically, and diagonally, you should say, "Bingo!"
You are the winner of this bingo game.
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Would you take a look at the expressions about how to play the bingo game? If there are unnatural expressions, would you correct them?

Use "contractions" instead of "shortened words."

Watch spelling -- "horizontally."

Looks very good!

=)

Sure! Let's take a look at the expressions and see if any corrections are needed.

1. "Look at the bingo board." - This sentence is clear and concise.

2. "There are nine sentences in nine boxes." - This sentence is grammatically correct, but it might be clearer to say "There are nine sentences placed in nine boxes on the bingo board."

3. "Look at the small bingo board over the big one." - This sentence is clear and concise.

4. "There are three sentences having shortened words in three boxes." - This sentence is grammatically correct, but it might be clearer to say "Three of the boxes contain sentences with shortened words."

5. "You should write down six more sentences containing contractions in the six boxes at random." - This sentence is clear and concise.

6. "I will read each sentence which doesn't have contractions." - This sentence is grammatically correct, but it might be clearer to say "I will read each sentence that does not contain contractions."

7. "You should find the same sentence having contractions." - This sentence is clear and concise.

8. "If you have three circled sentences horizontly, vertically, and diagonally, you should say 'Bingo!'" - This sentence is grammatically correct, but it might be clearer to say "If you have three circled sentences aligned horizontally, vertically, or diagonally, you should say 'Bingo!'"

9. "You are the winner of this bingo game." - This sentence is clear and concise.

Overall, the instructions are clear, but a couple of suggestions have been made for clarity purposes in a few sentences.