course comes in three books of case studies

in course of/in the course of in the course of 请翻译three weeks of course. in case of emergency in case of fire In case of three-course in the course of & in course of区别 which month comes after january _________,of course! I have a lot of books,three of which are in English. he studies hardest of the three of us =he ------ ------- --- in case of 和in the case of