Fill in the blanks with the words given below. Change the form where necessary. Each word can be used only once.appointcomplexitydense escortexpansionfrail maintenancepatrolrealmvague1. The eastern area is three times bigger than the western area, featuring____tropical rainforests and gaint waterfalls.2. In the meeting, a new manager was____to take charge of the project which was in financia difficulties.3. Services such as cooking, cleaningin and ____the elderly to hospitals are in high demand.4. A high-tech police car capable of immediate detecting stolen cars, disqualifie drivers, and other illnesses is____the roads.5. Around 300 workers and engineers are working hard for the timely delivery of the project despite its____.6. A researcher said China's fast economic____in recent years has made great contributions to world economic growth.7. That visit was hard work because he spoke no Chinese and had only a(n)____plan of action.8. China's first domesticity built pola icebreaker Xinhongzi has completed it ____ period and will soon set out on a mission again.9. A number of people believe that genuine friendships can develop in both the digital and physical____, with the boundaries between the two continuing to blur.10. She had to take care of the whole family, two children and two____elderly people, all by herself.