Routine innovation builds on a company’s existing technological competences but does not fit in existing business model.

DoestheUFOreally___________?Weneednewcomputerstoreplacethe_________ones.exist,existing

中国大学MOOC: existing in possibility

提高现在耕地单位面积产量有潜力。 A: There is potential for increasing the yield per unit area on the existing cultivated land. B: Increasing the yield per unit area on the existing cultivated land is potential. C: . It is potential for increasing the yield per unit area on the existing cultivated land. D: It is potential to increase the yield per unit area on the existing cultivated land.

Read the sentence pairs. Choose which word best fits each blank.existing line / dedicated lineA. The high-speed train runs exclusively on a(n) __________________.B. The high-speed train shares a(n) _______________________.

The plan to use existing resources was considered the __________ solution.

It is predicated that existing reserves of fossil fuel ____________ by 2045.

Chemistry has been existing for thousands of years.

Does the UFO really ___________? A: exist B: existing

____affixes are added to an existing form to create words.