单项选择题
A.To chat with Jack socially. B.To get help in the course. C.To hand in their assignments. D.To practice giving interviews.
A.Write their lab reports. B.Find out Professor Smith's schedule. C.Interview some high school students. D.Finish their chemistry experiment.
A.She wants to quit her job in the chemistry lab. B.She wants to get practical experience. C.She's interested in becoming a psychology major. D.She wants to earn extra money.