You feel unhealthy because you don't take any exercise.
A. If you don't take any exercise, you will feel unhealthy.
B. If you took more exercise, you would feel healthier.
C. If you take more exercise, you will feel healthier.
D. If you were healthier, you would take more exercise.
Unless we protect the environment, our life will be badly affected.
A. If we protect the environment, our life will be badly affected.
B. If we don't protect the environment, our life will be badly affecte
C. If we don't protect the environment, our life won't be badly affe
DIf our life is badly affected, we will protect the environment.
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