Grammar Answers:
1. “Could you please send me the information?”
2. “I want to ask a question.”
3. “Please reply when you can.”
4. “Dear John, thank you for your email.”

Reading Answers:
1. Formal.
2. “Thank you for your email”, “should you require further assistance”.
3. To inform about exam dates.
4. It is a professional message.
5. “If you need anything, just let me know.”

Listening Answers:
1. Speaker B.
2. Speaker A.
3. To get help with exam registration.
4. Formal: “I require guidance.” / Informal: “I need help.”