Olivia has some good habits.

1. She likes making pan-fried cakes.
2. She vacuums the living room.
3. She flushes the toilet every day.
4. She cleans clothes in the washing machine.

But she has some bad habits.
5. She drinks liquor often.
6. She drives recklessly.
7. She doesn't drain the water on the floor of the bathroom.
8. She doesn't water the plants on the veranda on a regular basis.

[Are the sentences all grammatical? I appreciate your help.]

Yes -- again -- all are grammatically correct! Very good!!

Yes, all the sentences are grammatically correct. Here is the breakdown of each sentence:

1. She likes making pan-fried cakes. - This sentence is grammatically correct. It states that Olivia enjoys the activity of making pan-fried cakes.

2. She vacuums the living room. - This sentence is grammatically correct, indicating that Olivia regularly cleans the living room by using a vacuum cleaner.

3. She flushes the toilet every day. - This sentence is grammatically correct. It means that Olivia consistently operates the flush mechanism of the toilet on a daily basis.

4. She cleans clothes in the washing machine. - This sentence is grammatically correct, expressing Olivia's habit of washing her clothes using a washing machine.

5. She drinks liquor often. - This sentence is grammatically correct, stating that Olivia frequently consumes alcoholic beverages.

6. She drives recklessly. - This sentence is grammatically correct, suggesting that Olivia operates a motor vehicle in a careless and dangerous manner.

7. She doesn't drain the water on the floor of the bathroom. - This sentence is grammatically correct, highlighting Olivia's failure to remove the water that has accumulated on the bathroom floor.

8. She doesn't water the plants on the veranda on a regular basis. - This sentence is grammatically correct, indicating that Olivia does not regularly provide water to the plants situated on the veranda.