Nên dùng khoảng 20 phút · tối thiểu 120 từ

You recently took a short online course run by a training centre. The course was useful, but the video lessons were often difficult to hear and the practice exercises were not marked. Write an email to the centre manager. In your email, you should: - say which course you took and when - explain the two problems you had - suggest what the centre should do about them Write at least 120 words. You should not include your real name or address.