1. I know the answer, can't tell you. 2. Should we go by train, 3. I am allergic to cats, 4. She did not study, 5. I will be late for the party, take the bus? I have two of them. she failed the test. will be having dinner with my parents first. 6. Can you stay here 7. She does not like apples, wait for him? does she like oranges. 8. He has a small house, 9. You can pay with cash, it feels very spacious. you can use your credit card. 10. He was driving too fast, 11. We bathed the dog, he missed the turn. we could not get him clean. 12. He was supposed to study, he played games instead.

Some of the sentences are mixed up. I've found this question online. It is the following:

Complete the sentence with the correct conjunction:

1. I Know the answer, I can't tell you.

2. Should we go by train, take the bus?.

3. l am allergic to cats, I have two of them.

4. She did not study, she failed the test.

5. I will be late for the party, I Will be having dinner with my parents first.

6. Can you stay here, wait for him?.

7. She does not like apples, does she like oranges.?

8. He has a small house, it feels very spacious.

9. You can pay with cash, you can use your credit card.

10 He was driving too fast, he missed the turn.

11. We bathed the dog, we could not get him clean.

12. He was supposed to study, he played games instead.

1. I know the answer, but I can't tell you.

2. Should we go by train, or take the bus?.

3. l am allergic to cats, but I have two of them.

4. She did not study, so she failed the test.

5. I will be late for the party, because I will be having dinner with my parents first.

6. Can you stay here, and wait for him?.

7. She does not like apples, but does she like oranges?

8. He has a small house, but it feels very spacious.

9. You can pay with cash, or you can use your credit card.

10 He was driving too fast, so he missed the turn.

11. We bathed the dog, but we could not get him clean.

12. He was supposed to study, but he played games instead.

Explanation:

Since this question does not provide us with the options, I have used the most common conjunctions in such cases.

"But" is used when the ideas expressed in the clauses are contrasting or opposing each other. That is what happens in sentences 1, 3, 7, 8, 11 and 12. The second clause presents an idea that is contrary to the first clause. Take a look at sentence 11, for example. When we bathe a dog, we expect to get it clean. However, they didn't. That is why we use "but".

"Or" is used when we present two alternatives or options to our interlocutor. That is what happens in sentences 2 and 9. In sentence 9, for instance, the options are cash and credit card. The listener can choose one or the other.

"So" and "because" can be used to establish a cause-and-consequence relationship between the sentences. "So" is used in the clause that presents the consequence, while "because" is used in the clause that presents the cause. Here, we used "so" in sentences 4 and 10, and we used "because" in sentence 5.

Finally, "and" is used to add an idea to the one that was already presented. It is an addition. We used it in sentence 6 because we want to know if the person can wait for him besides staying.