THE ANNUAL PRODUCTION OF HOUSEHOLD WASTEWATER MAKES UP OVER 30 PERCEN...

Câu 6: The annual production of household wastewater makes up over 30 percent of all wastewater discharged into the environment in Vietnam. A. escaped B. exposed C. released D. brought Mark the letter A, B, C or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions.