56. He said under his breath that he would keep the secret. The underlined part means _____.
At the railway station, the mother waved goodbye to her daughter until the train was _______.
Many Chinese universities provided scholarships for students ______ financial aid.
The two sportsmen congratulated each other ______ winning the match by shaking hands.
Elizabeth has already achieved success_______ her wildest dreams.
Modern equipment and no smoking are two of the things I like ____ working here.