Fill in the correct prepositions, then choose any three items and make sentences. 1. to take your dog ... a walk 2. to be full ... hope 3. to make friends ... the Internet 4. to become isolated ... sb/sth 5. to cook ... fun 6. ... the city centres 7. to pay ... sth 8. ... the other hand 9. to be optimistic ... sth 10. a cure ... sth