It is the third time that she has won the race, ______ has surprised us all.
They were standing so far away that I couldn’t_____ their faces clearly.
The dining room is clean and tidy, with a table already ______for a big meal.
____ some teenagers don’t realize is ____ difficult life can be after they get addicted to drugs.
Among Asimov's most famous works of science fiction, one _____he won an award, was the Foundation Trilogy.
Some retired people have nothing to do. They often get together and ____for hours talking about their past experiences.