He does so little work in the office that for all practical purposes it would make no difference _______ he didn’t come.
—Could I smoke here? —I’d prefer _______if you don’t smoke in front of the children.
In March 2013, Xi Jinping, ____ leader of the Chinese Communist Party, was warmly received by Putin, who was elected ____ president of Russia two years ago.
Not until his father died _______ what his father really meant.
— Do you like coffee or milk? —Both. But I prefer coffee _____ milk.
It was ten years ago ______ that organization was _______.