57. ---These boxes are too heavy for me to move. ---Don’t worry; I’ll give you a hand ______ them.
The girl asked, "Could you help me solve the math problem?" "Of course, I can." he replied __________.
It was __________ computer games that cost the boy a lot of time __________ he ought to have spent onhis lessons.
Only in this way __________ to make improvements.
In order to find __________ better job, he decided to study __________ second foreign language.
She won __________ from the president for her great achievements.