In ancient Egypt, green represented hope and spring, ________ is the time of year ________ things in nature start to grow after a long winter.
The fact that so many people still smoke in public places ______ we may need a nationwide campaign to raise awareness of the risks of smoking.
Sam has been appointed _______ manager of the engineering department to take ____ place of George.
—Where is the shooting centre?—It is about 50 kilometres ______ the city of Beijing.
Though difficult, I ________ him find a job, which made him very pleased.
He was inspired to start again _________ he had failed.