1. The cat did excrement, so it was hard to keep the cat.

2. The cat vomitted droppings, so it was hard to keep the cat.

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Are they correct expressions? Would you correct the errors if any?

Thank you for using the Jiskha Homework Help Forum again. Gramatically they may be ok BUT "did excrement" is most awkward. I'm afraid any cat is going to need a litter box!. The word "droppings" is a synonym for "excrement" and that is not vomitted.

1. The cat did excrement, so it was hard to keep the cat.

2. The cat vomitted droppings, so it was hard to keep the cat.

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Thank you. Then which expressions should I use?

For sentence 2, you could just omit the word "droppings" and the sentence would be awkward but OK.

Better, smoother sentences would be these:

1. The cat defecated in the house, so it was hard to keep him.

2. The cat kept vomiting, so it was hard to keep him.

=)

Most often used it the term "litter box", which is the term for where cats, who are house trained, use the bathroom.

So, I would say "The cat would not use the litter box, so it was hard to keep him. "

Whoever made this question needs some help.. o-0

Both sentences have some errors in their expressions. Let's correct them:

1. The cat defecated, so it was hard to keep the cat.
2. The cat regurgitated, so it was hard to keep the cat.

Explanation:

1. Rather than using the word "excrement," which refers to any waste matter, it is more appropriate to use the word "defecated" to specifically refer to the act of eliminating solid waste.
2. The word "vomitted" refers to the act of expelling stomach contents forcefully through the mouth, usually as a result of illness or discomfort. However, the word "droppings" refers to fecal matter excreted by animals like birds or rodents. To describe the cat's act of bringing up undigested food, it would be more accurate to use the word "regurgitated."

By using the correct terminology, the sentences convey a clearer and more accurate message.