________Beijing you see today is quite ________ different city from what it used to be.
The scientist, __________ my father works, is about 50.
--- Hi, Torry, can I use your computer for a while this afternoon? --- Sorry, __________.
You needn’t write on __________ line. You can write on __________ line.
You __________ to leave until you __________ your work.
We have every reason to believe that __________ 2016 Olympic Games will be __________ success.