Introduction to Air Pollutants & Troposhpheric Pollutants
Replace the u...
Question
Replace the underlined verb with the correct form, if necessary:
'Do you still smoke?' 'No, I gave it up. I don't smoke for years.
A
no change
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B
hadn't smoked
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C
isn't smoking
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D
haven't smoked
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Solution
The correct option is Bhaven't smoked
Option D Ian the correct answer because ‘haven’t’ mean a to not cause something to happen or someone to not do something, in this case smoking.
Option B is incorrect because ‘hadn’t ‘ smoked for years means that he didn’t smoke for the past few years but he might be smoking now.
Option C is incorrect because ‘I isn’t smoking’ is incorrect as 1- I ain’t smoking would be more appropriate, and 2- isn’t smoking involves only the present, and doesn’t include the past few years.