Mary can speak Chinese fluently, _____ impressed me most.
The discovery of new evidence led to _______ .
— _____ is the best football player in your city? —Jerry.
When it comes to talking about football, his favorite sports, with David, any time will _____ him.
_____ to get there before noon, the postman set off in spite of the heavy fog.
It’s said that non-smokers who are always around smokers have almost the same ______ of suffering from lung cancer.