Vocabulary: Finding Errors

这个程序包含50托福错误识别测试中，每个人都有20个问题。

This application is designed for students who are preparing to sit for TOEFL exam. It contains 50 tests, each has 20 questions. There are 4 texts in a sentence which are underlined in each question, but only one text is not correct. You need to identify the error text in a given sentence.

The questions are basically to test your English grammar but some of them also test your vocabulary and general understanding of English.

You earn 5 points for each correct answer. There is no penalty for wrong answer. After you finish, your score will be reported (over maximum 100 points) and you will have chance to review your correct and wrong answer.

There is no time limit but you are encourage to complete each test in around 10 minutes.