Onethird of the area__________covered with green trees.About seventy percent of the trees__________been planted.
--Oh, must you? Stay a longer. It's been such fun having you--__________. I've got an early start tomorrow morning.
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.________.