Having lived in China for 8 years, Helen has a good ______ of both English and Chinese.
—Happy birthday!— Thank you! It’s the best present I_________ for.
I showed several old friends of mine around the city, _________ surprise,the changes had been so great.
_______ his own experiences in Italy, Mr. White created this famous novel.
It’s impossible for him to escape ________ this time; he made such a big mistake.
—Who do you think will get the first prize?—Mary, of course. She ________ for the competition for months.