From the course of human development, the ultimate aim of the human race is to pursue the spiritual joy based on ______ materials.
It was so dark in the theatre that I could hardly _______ my friends.
Though he graduated from a famous university, he was ______ failure as _____ teacher.
–My family had a free vacation in the beautiful city last weekend. We had a lot of fun there. -- _________.
Sometimes he was made in an embarrassing situation because he was always too_________ in his work.
We collected a lot of books to get the necessary information but only half _________helpful, so we failed to finish the work.