In this exercise everything is moving in steps but we have a sharp ( # ) sign in front of all the F's. Remember a sharp sign raises a note 1 half step.  All of the F's in measure 5 will be sharp. We only have to label one in a measure and any others in that same measure will also be sharp.
All of the F's will be played F# on this exercise also except this time we don't need the sharp sign in front of each F. The key signature shows an F#. 
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= 60