The failure of their friendship was closely related _____ other people’s privacy.
The decision _____ giving lessons during vacations and weekends should be banned is ____ the Education Department of Anhui Province has made.
They wouldn’t agree to sell the house to us at the same price _____ they had promised, _____ was rather disappointing.
The official made the demand that the soldiers ____ at once _____ battlefront.
All those second-hand goods are sold at ____ before.
——The switch to more low-carbon energy, I think, is _____.——I agree with you.