Dear Prof. Richardson,
1. I/ write/ tell/ I find/ computer course/ too difficult/ me.
2. I/ want/ know whether/ choose/ easier.
3. Since/ students/ arts/ and/ not/ know much/ maths/ find/ difficult/ difficult/ understand/ many terms and figures/ computer course/ let alone/ remember.
4. I/ know/ important/ course/ be/ but/ simply/ cannot develop/ interest/ it.
5. In fact/ have/ doze/ class/ no matter/ hard/ try/ concentrate.
6. I/ feel/ miserable/ this.
7. Get out/ embarrassing situation/ like/ choose/ less/ challenging course.
8. I/ forward/ your decision.
Yours sincerely,