The project will help people understand the many threats to the natural environment ________ endangered plants and animals live.
He held out his hand, but the lady refused to take it, which made him feel very _________.
Due to lack of protection, the hills which used to be covered withgreen trees are now mostly _________ A. blankB. bare C. vacantD, hollow
It is generally agreed _________ education is vital for the development of individuals and the well-being of society.
George is _________ a very serious man, but as a matter of fact he has a great sense of humour.
He has learned to get on with all kinds of people and _________ todifferent ways of life.