The young man always talks a lot ___________ he knew everything, which, of course, makes others unhappy.
_______ in the Moluyuan on a March afternoon, he could feel the warmth of spring.
You should correct all the mistakes as soon as possible before the book _____.
How can they learn anything _____ they spend all their spare time watching television?
We congratulated Jerry ____ the championship.
It took my father half an hour to finish ____ my bike.