If/ there/ be/ much/ exhaust fume/ air/ more/ people/ cope/ respiratory problem//. A. If there is too much exhaust fume in the air, more and more people will cope with respiratory problem. B. If there will be too much exhaust fume in the air, more and more people will cope with respiratory problem. C. If there are too much exhaust fume in the air, more and more people will cope with respiratory problem. D. If there was too much exhaust fume in the air, more and more people will cope with respiratory problem.

If/ there/ be/ much/ exhaust fume/ air/ more/ people/ cope/ respiratory problem//.
A. If there is too much exhaust fume in the air, more and more people will cope with respiratory problem.
B. If there will be too much exhaust fume in the air, more and more people will cope with respiratory problem.
C. If there are too much exhaust fume in the air, more and more people will cope with respiratory problem.
D. If there was too much exhaust fume in the air, more and more people will cope with respiratory problem.

→ GT: Nếu có quá nhiều khí thải trong không khí, càng nhiều người sẽ đối phó với các vấn đề về đường hô hấp

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