Look at the four squares, A , B , C and D , which indicate where the following sentence could be added to the passage. Where would the sentence best fit?
This irritation is caused by viruses or bacteria, exposure to tobacco smoke, or air pollution.
Correct
Incorrect
Free 45-minute Lesson for TOEFL Speaking
Discover which popular Task 1 Introduction sentence is a “score-killer” and the “perfect” alternative for rapidly earning points and contributing to a high score like 26
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