This is tricky. In this case "he will tell me" isn't a statement of intent to tell you something in the future. It's saying what someone generally does. It's saying "he often tells me he loves me", but it's also implying that there is something else he won't do (in this case, "be demonstrative" in other ways).

The second one is usually considered correct, but some people in some areas might say the first one. "Compared to" is the standard phrasing for comparing two things, like "X compared to Y". However, some people in some regional dialects might say "comparing to".

No. You can say “I bought a few apples” but not “I bought the few apples,” unless there is something else to add, such as “I bought the few apples they still had left,” emphasizing that you bought the specific amount that were still left. You can say “The few apples I bought were all rotten,” which emphasizes that you only bought a few and they were ALL rotten. “What few” is much less commonly used. You could say “What few apples I bought were all rotten”, and people would know what you meant, but it would sound out of date. “What few” is only used in very formal language.

Try “My cat hasn’t been taking pills for long, so we should wait a few more days for him to get better.”

The second is fine, but it would work better without the word “increasing”. “Increasing” is redundant with “advancement”

Yes you could say “A father pulling his son” but “A father dragging his son” is a bit more natural. “Pulling” would more often mean pulling someone *on* something, such as a sled or skateboard.

"Describe the cafe or restaurante you often go to" : There is a cafe I often go to in our city. It is small and tidy. It looks out a busy street which is full of shops and doctors clinics. It offers very delicious drinks and desserts.