Task 4 Listen to another survey report about social networks and fill in the following blanks.[音频]The new finding:The social networks do not 1. _________ efficiency, but 2. _________ efficiency.The supported data:3. _________% of the people surveyed said social networking has made them more efficient.The top social tools used by companies:• Companies’ collaboration sites: 4. _________%• Internal forums: 5. _________%• Companies’ video materials: 6. _________%• Online third-party social networks like QQ: 7. _________%The conclusion:Social networking can increase work efficiency if:• the tools are 8. _____________________ by the employer;• social networking is a necessary part of the work.