____ surprises us most is that she doesn’t even know ____ the difference between the two lies.
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.
Yesterday I tried to call you several times but I couldn't __________ to you.