The teacher has a(an) ___________ to get off topic; sometimes it is difficult for students to make out what he is saying.
________ 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.