题目内容
It is not very healthy to jog beseide a motorway because of the ______.
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Chen didn't want to play football in the afternoon. He just wanted to ______ with his friends and do nothing.
A good ______ will tell you what to do and how to win a race.
At the start of a tennis match there must be complete ______ among the fans,
Most athletes give a better ______ during a competition than in training.
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