Apple juice tastes___________.
The rubbish _____ is produced every day is becoming a serious problem in cities around the world.
After Mandela was free (自由的) in 1990, he chose to shake hands with the people ________ wanted to kill him.
I’m a football fan. I was interested in everything _____is about the 2010 World Cup.
Do you know the teacher who is having an English lesson.
I can't forget the time the earthquake happened in Yushu.