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The gap between rich and poor has _______ (wide) considerably. 2. In this study, we made no specific _____________ (predict) about likely outcomes. 3. Shareholders have agreed to a series of ______________ (sweep) changes in the organization of the company. 4. You should not ____________ (isolation) yourself from others. 5. The river _____________ (pollution) with chemicals from the factories. 6. These are the __________________ (regularity) flights from London to Paris. 7. He is a _________________ (frequency) customer in our restaurant. 8. The bank seems to give _____________ (prior) to new customers. 9. These books must _____________ (distribution) to students at once. 10. Once _______________ (start), the project will bring lots of benefits to the local people.