She _______ have left school, for her bike is still there.
Beijing government puts more than 700 million yuan to increase its green space this year; ____________ doubles the money provided last year.
I can guess you___________ your sweater inside out.
It is only when you nearly lose someone ____________ you fully realize how much you value him.
--I'm going downtown. --Come on. __________.
--Shall Mary come and play computer games?--No, __________ she has finished her homework.