First press play to hear a broken chord which gives you the Do Mi and So pitches followed by the starting note.
Press pause. Then sing the melody without the recording. This will be sung an octave lower than what is written.
Finally, play the recording to check your work.
*HINT - if you make a mistake try to keep going to keep a steady pace and get back on track where you can.
For more information on using Solfege in major keys click HERE.