Keep working hard,____be rewarded withsuccess.
________ global energy safety, all the countries have been called on to take joint efforts .
It is _____ you deal with difficulties that shows _____ you are really like.
At the crossing there is an arrow _______the direction to the Andrew Farm.
By the time the police arrived on the scene, the burglars_______.
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I had only ______ slight temperature, but my mother regarded the illness as serious enough for ______ hospital treatment.