A、May 30th. B、June 30th. C、July 30th. D、August 30th. B对话中，女士提到申请人员最迟该在开学前两个月之前提交申请，因此如果是9月1日开学，申请日期应截止于6月30日。故本题答案为B 。

W: English Language Center. How may I help you?
M: Yes. I’m calling to find out more information about your program.
W: Well, first of all, the purpose of our program is to provide language learning opportunities to this area’s community, whether a student’s goal is to master basic functional language skills for his or her job, or to enter a US college or university.
M: Okay. I’m calling just for a friend who is interested in attending a US university.
W: And (19) that’s the kind of instruction that we provide, from basic communication courses to content-based classes such as computer literacy, intercultural communication, and business English.
M: Great. What are your application deadlines for the next semester?
W: Well, (20)we ask applicants to apply no later than two months before the semester begins.
M: And how does one apply?
W: Well, we can send you an application and you can email it back to us, or you can fill out our application on our website.
M: And are there other materials I would need to send in addition to the application form?
W: Yes. (21) You would need to send in a $ 35 non-refundable application fee, a sponsorship form indicating who will be responsible financially for the student when studying in our program, and a bank statement showing that you or your sponsor has sufficient funds to cover tuition expenses and living costs for the entire year of study.
M: And how can I send these materials to you?
W: You can either send the application packet by regular mall or you can fax it.
M: And what is the tuition for a full-time student?
W: It’s two thousand thirty dollars. We accept cash and credit cards.
M: I think that’s all about it.
W: Okay, great.