B. Complete the sentences with the nouns in the box. Notice the prepositions that follow. solution effect need Importance damage advantage reason of 1. What is the of the war on the economy? 2. The main of listening carefully before you answer is that you avoid misunderstandings. 3. The best to this problem is to ask somebody older than you for advice. 4. Yesterday, our PE teacher talked to us about the team building exercises. 5. Fortunately, the earthquake didn't cause any to our house. 6. There is an for more volunteers to help in our fundraising event 7. The main for the success of the film is its special effects