1、I have made up my mind what courses I am taking.
我已经决定选什么课了。
make up my mind 决定做某事，可以跟从句，也可以跟动词不定式。
E.g.：I have made up my mind to get the first prize of the marathon competition.
我已经下定决心要赢得这次马拉松比赛的第一名。

2、most of the students are still shopping around, looking at various courses.
部分学生还在观望，先了解一下各门课的情况。
shopping around:观望 此外还有逛商店的意思
Some housewives make a habit of shopping around to get the best buy.
购物时货比三家，是家庭主妇的好习惯。

3、well, I have put off doing my science requirement till now. I haven’t learned any science courses for three years
是这样的，我已经拖了三年没选理科课程了。
science 理科 liberal arts： 文科 college of arts文学院

4、because you are major in MBA. I figure that you know more about the MBA
因为你主修MBA.我想你对MBA的课都比较熟悉。
major in 修……专业 专攻…… major in computer 主修计算机课程
figure 数字 体型 这里是“认为”接近于think

5、I took that class last year but I flunked it, so this year I have to take it again
我去年修了这门课，但是考试没通过，所以今年我还得再修一年。
flunk 不及格，挂科 也可以说 fail a class/course
retake:重修
I failed this class last semester, so I have to retake it.
我上学期没通过这门课的考试，我要重修这门课

6、There are final exams and the students, if they pass, are given three full credits for these subjects
期末会有考试，如果学生通过了考试，他们会得到三门课的全部的学分
Credit：学分 two-credit course 两学分的课程
Credit system：学分制

7、conversation
Lihue: I’m coming to see you about selecting courses.
我来是为了选课的事情
Professor: yep. What are you thinking about then?
好的，你是怎么想的呢？
Lihue: I am planning to do three elective courses besides the three required ones
我打算选三门必修课和三门选修课。
Professor: how many credits in all?
总共多少学分？