1. I have helped an old lady carry a big bag.

Question

2. I have helped an elderly person cross a street.

3. I helped a foreigner find a subway station.

4. I have helped an Englishman go to a police station.

5. I have helped a stranger find a bookstore.

6. I have helped a Japanese find the way to Seoul Station.

(Are the expressions all grammatical? How about the use of articles?)

Answer 1

They are all correct -- including the articles. :-)