First class on Wednesday

Monday morning, we got the course list and tried to arrange our courses.
It took us whole morning to do that.
Finally we decided to choose three courses and those courses are all in Monday and Wednesday.
(Because each three credit course is seperated into two days, 1.5hours per day.)
Since we had already decide our time table, so we went to class on Monday afternoon.
However, when we just sit there for about 2 mins, and someone annouced that there was no faculty for this class so far, so dismiss!
The same situation on Tuesday and this morning. All canceled!

Finally, we had two classes this afternoon, and couldn't understand what the teacher talked about!!!
Poor English...
?Because we introduced ourselves to the teacher before the class, the teacher asked us to anwser the question in the class!!!
We were totally shocked when she said..."How about Rachel?"
Most of the time, each class would have 60 students in there! (only 6 girls among them!!!)
I thought I was going crazy when I heard "Rachel"....or the teacher must talked about something else.
Because lots of Indian people pronouce my name just like "Ratio".
Our first class the teacher taught about one rating methodology of research is called "Ratio", I always thought they were calling me....

Anyway, after our first class, we have 3 assignments....
Sign... can I withdraw it??