Some major causes of ocean pollution include oil spills, toxic waste and hazardous

Câu hỏi :

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

A. that dumped

B. dumped

C. which dump

D. are dumped

* Đáp án

B

* Hướng dẫn giải

Đáp án B

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