A、To test their English ability. B、To use it as a placement test. C、To demonstrate their English skills in the workplace. D、To m

　　TOEIC is the Test of English for International Communication. It measures the ability of people to communicate in the workplace using everyday English. (20) The Educational Testing Service (ETS) in Princeton, New Jersey, develops and administers the TOEIC. It says more than 9 000 organizations use the test in more than 90 countries. Each year the TOEIC is taken in the United States about 20 000 times. Last year the test was given more than five million times worldwide. (21) Non-native English speakers take the test to demonstrate their English skills when seeking a new job or a promotion. Some organizations use the TOEIC to measure progress in English training programs and as a placement test. The cost of the test is set locally in each country. The TOEIC is really two tests. People can take one or both of them. One is a paper-and-pencil test. It measures listening and reading skills. The other test is given on a computer. It measures speaking and writing skills. Eleven questions on the computer test require speaking. For example, the test-taker is asked to read out loud or describe a picture. Eight other questions require written answers, including an opinion essay. There are some false e-mails claiming to be from ETS on the Internet. Spokeswoman Christine Betaneli advises people taking the TOEIC to be suspicious of any e-mail claiming to be from ETS. They should be especially suspicious of messages that ask for information that they have already provided for the test. (22) The spokeswoman says if you get an e-mail you are not sure about, forward it or send a separate message to ContactETS@ets. org.
　　19. What is the passage mainly about?
　　20. What do we learn about TOEIC from the passage?
　　21. Why do non-native English speakers take the test?
　　22. What should we do if we receive a suspicious e-mail from ETS?