In general, the old man is generous. But ____, he was mean to an old beggar.
________ around the Water Cube,we were then taken to see the Bird’s Nest.
I have ______ all the papers but I still can’t find my notes.
_____in the sports world,a sportsman needs to train constantly to keep himself in best condition.
Teenagers ________ their health because they play computer games too much.
Peter’ shirt looked just the same as Tom’s,but it cost ______ his.