---He has failed in the exam again.---Oh, ____________.
____ it is to skate on real ice!
From the ______ expression on his face we can guess something ______ must have happened to him.
Mr Li who is in _____ charge of our class is very experienced.
He is a man of ____ and he had a lot of interesting ____ in his life.
I don’t think _____ possible to master a foreign language without much memory work and practice.