Feel free to start on any of the scale degree of this scale: C, D, Eb, F, G, and A.
Always keep the interval relationships between the notes the same as in the question. As you are doing that, you will discover that some versions will sound better than the others.
Later harmonize the question and your favorite answer in 4 parts (SATB) on the instrument in a very slow tempo. The chords should only change twice per measure (on beats 1 and 4).
Here is the PDF file for printing. Try to achieve 3 correct repetitions in a row with each step of this exercise.
After you are done, post your time to comments.