A.

1. B

2. A

3. D

B.

1. I saw your school’s advertisement in the Tuoi Tre newspaper yesterday.

2. I am interested in learning English and I would like some information about your school.

3. I have studied  English for over four years, but I want to improve my speaking and listening skills.

4. I would be very grateful if you could send me details of courses and fees.

5. I look forward to hearing from you soon.