________ the quickening pace of life, competition goes increasingly fierce in all respects of life, bringing great pressure as well as plentiful chances to everyone.
It is the third time that she has won the race, ______ has surprised us all.
We had a picnic last term and it was full of fun, so let's have________one this month.
—I think you should phone Jenny and say sorry to her.—________. It was her fault.
When you finish reading the book, you'll have______better understanding of________life.
—Have you seen Maragaret? The boss is looking for her everywhere.—She________the train, otherwise she would have arrived here by now.