Question
The following sentence has been divided into parts. One
of them may contain an error. Select the part that contains the error from the given options. If you donāt find any error, mark āNo errorā as your answer. Air pollution, together with littering, are causing many problems in our cities.Solution
As the main subject is āair pollutionā the verb āisā should be used in place of āare.ā The corrected sentence is: Air pollution, together with littering, is causing many problems in our cities.
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