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This was a long time before people .  exist v. 1. Recently-discovered proofs show that life might have existed in this region millions of years ago. 2. The problem will no longer exist with our joint efforts.  exist on 3. Victims of the earquake in Japan could only exist on a diet of rice and very little else. 4. It was impossiblefor the family to exist on such a small e. This was a long time before people .  exist v. 1. Recently-discovered proofs show that life might have existed in this region millions of years ago. 2. The problem will no longer exist with our joint efforts.  exist on 3. Victims of the earquake in Japan could only exist on a diet of rice and very little else. 4. It was impossiblefor the family to exist on such a small e.  existing adj. ~ + n. 1. With the existing proof, we can notjump to a conclusion recklessly. 2. Existing technology will be re ced or renewed to boost productivity and efficiency.  existence n. 1. Scientists have many theories about how the universefirst came into existence (= started to exist ). 2. The existence of the museum is threatened by lack offunds.  existing adj. ~ + n. 1. With the existing proof, we can notjump to a conclusion recklessly. 2. Existing technology will be re ced or renewed to boost productivity and efficiency.  existence n. 1. Scientists have many theories about how the universefirst came into existence (= started to exist ). 2. The existence of the