WHICH OF THE FOLLOWING IS NOT TRUE

Câu 7. Which of the following is NOT true? A. People add to the problem of pollution by dropping litter. B. Huge amounts of rubbish in the cities cause pollution. C. We are responsible for huge amounts of rubbish in the cities. D. People add to the problem of pollution by collecting rubbish. Choose the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following.