--What can I do for you?-- If you __________ see Mr. Smith, give him my regards.
He wrote a letter________he explained what had happened in the accident.
Nowadays people are more concerned about the environment________they live.
Happiness and success often come to those________are good at recognizing their own strengths.
Mo Yan was awarded the Nobel Prize for Literature in 2012,________ made one of the Chinese people’s longheld dreams come true.
The president of the World Bank says he has a passion for China,________he remembers starting as early as his childhood.