II. Complete the sentences, using the correct form of the words in brackets. 1.People believe that the ______water has brought cancer to the
II. Complete the sentences, using the correct form of the words in brackets. 1.People believe that the ______water has brought cancer to the local residents. (pollute) 2.Noise is considered as_____ pollution. (environment) 3.A number of cleaning products contain____ chemicals. (harm) 4.Water samples collected at these villages were seriously____with bacteria. (contaminate) 5.Contaminants are usually____ to aquatic … Đọc tiếp