Improve your Spanish! We offer 1-on-1 online lessons with highly qualified tutors (教师). You can book

  A. For overall popularity.     B. For less expense.
  C. For easier contact.     D. For a better effect.
23. How does the author make the ad more reliable?
A. By offering students’ reviews.     
B. By listing students’ test grades.    
C. By detailing the requirements.    
D. By creating a free Skype account.

答案
文章主要是推广一个具有特色的西班牙语培训课程。
21. C  根据Feature和What you need部分的第1句可知，老师会根据学员情况，制定个性化教学计划以适应学员。
22. D  根据What you need部分最后一句可知，建议学员使用带麦克风的耳机是为了让他们获得更好的体验。
23. A  根据文章最后两段可知，作者通过例举学员的评论，让读者感到广告内容更可信。