阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。
A
This page summarizes the service offered by some of the best online tutoring websites on the Internet. We provide a brief summary of each of the websites, the service they offer, the cost of their service and our opinions of the pros and cons of each website.
In our opinion, Tutor Vista.com offers the best buy in the field of online tutoring service. For $100 per month your child can have unlimited tutoring. There are significant discounts for multi-month contracts ($ 50/month for 12 months or more).
Tutor Vista.com is founded by Krishnan Ganesh in 2005 with headquarters in Bangalore, India. Its mission is to provide world-class tutoring and high-quality content to students around the world—anytime, anywhere and in any subject.
Tutor Vista.com only hires experienced tutors. Most have a master or Ph. D. degree as well as 5 to 10 years’ teaching experience and they must pass strict certification exams.
You can schedule sessions with your preferred tutor in advance. Using a technology called VoIP, a student and a tutor talk naturally with headphones and microphones. The student and the tutor also share a “Whiteboard” that they both can write on. No special software is required but a headset with microphone is recommended. The company takes advantage of the highly educated, low-wage-base Indian population to offer the most cost-effective online tutoring service on the Internet.
Pros:◆Highly qualified tutors.
◆Unlimited online tutoring.
◆Low cost.
Cons:◆Maybe some language problems.
◆Voice interaction requires purchase of headset with microphone ($25~50 from Amazon).
1. How much do you have to pay if you make a contract for 1.5 years on Tutor Vista.com?
A. $1,800. B. $1,200. C. $900. D. $2,000.
2. How can a student get help from his tutor when he has problems?
A. He can communicate with the tutor through chatting online
B. He can call the tutor directly anytime.
C. He can write an email to his tutor and wait for the reply online.
D. He must wait some days to meet the tutor personally.
3. According to the passage, what may be discussed next?
A. Other tutoring websites.
B. The best service provided by TutorVista.com.
C. The qualified teachers from Tutor Vista.com.
D. The great benefit of learning on Tutor Vista.com.
