When I was at college I ___ threee foreign languages, but I ___ all except a few words of each.
______from space, the earth, with water _____seventy percent of its surface looks like a blue ball.
Roads in this mountain area used to be ______; people found it hard to travel here.
On May 30th, 2010, at _____World Table Tennis Championship, Ma Lin and Zhang Joke won the gold medal in men’s with ____score of 3:1.
They would not allow him _______ across the enemy line.
—Where did you see him for the first time?— It was in the factory _________ we worked.