--Shall Mary come and play computer games?--No,__________ she has finished her homework.
She thinks the naughty students have escaped being punished by their teacher, __________?
With a lot of work __________, our manager couldn’t spare time for a holiday.
--Why will you hang that photograph on the wall? --__________ visitors of the memorial days of the Long March, Sir.
During enjoying the Mid-Autumn Festival, celebrating the harvest is an important reason, but of __________ importance is the whole family’s get-together.
Trains with the first letter D or Z can run __________ a speed of more than 200 kilometers an hour when it travels __________ the desert.