Complete the following sentences with the words and phrases given below. complement / entail / endowed with / trace back to / preceded by A. According to a team of researchers from Copenhagen University, all blue-eyed people can be ________________one ancestor who lived 10,000 years ago near the Black Sea. B. Many travellers described it as a prosperous city ________________rich natural resources. C. The presentation was _______________an introduction of the basic concepts and a short video show of the panel discussion. D. The project could mobilise additional resources from development partners that could ________________the limited resources allocated by government. E. Falling prices would ________________a vicious circle of lower production, more bankruptcies and even more unemployment.