单选题
Listen to the conversation and circle the appropriate letter.
单选题
Sarah still has __________ credits to fulfill this term.
【正确答案】
B
【答案解析】boy： Sarah, you look upset, what’s up?
girl： I must complete 2 more credits this semester. It seems that there is no optional course for me to choose in such a hurry.
boy： Don't worry! I heard from my teacher that this term the microbiology science isnot as popular as other optional courses. So there are some vacancies.
girl： But am I qualified to apply for the course?
boy： Of course, the course is offered to full-time and flexible-study-time students.
girl： Wow, I meet the requirement! Thank you.
单选题
The microbiology science course is available for _________ students.