1) If A does something for B and in turn B want to thank A, say "B would like to treat you to a meal at a restaurant."
2) It seems all the and all of the are identical? Yes, they mean the same.
All the shops are closed. All of the shops are closed.
3) At a fast-food restaurant, which of the following are 'common', 'appropriate' and 'native-like [i.e. used by native English speakers?]'
- Stay here?
- to go?
- take away?
- dine here?
Eat in or take out?
4) when 'though' is at the end of a sentence, it, really, simply means 'but' placing at the end of a sentence. However, we do hear native speakers say
I don't understand your question. Context is important.
Can I borrow Mary's blouse tomorrow?
Maybe. Be sure to ask permission, though.
It can mean "however."
Student or Learner