12. Add suitable question tag for the following statement.
They experiment with ways to improve air quality, ..
a) doesn't he
b) don't they
c) haven't they
Answers
Answered by
5
Answer:
The answer for the above question is= c. don't they
Answered by
2
Answer:
They experiment with ways to improve air quality, don't they know that some ways could be prejudicial for nature?
Explanation:
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