__________ many times, he finally understood it.
He is afraid to face the difficulty he thinks he’ll have _________ the driving test tomorrow; he finds it difficult _________ rid of the worries.
Nick is looking for another job because he feels that nothing he does ______ his boss.
Tuesday being _________ windy, cold day in Beijing, the President tours _______ Forbidden City in Beijing, wearing ________ blue shirt with no tie and a casual leather jacket.
_______________ while writing, he locked himself in his study.
The incomes of skilled workers went up. ______, unskilled workers saw their earnings fall.