Could you tell me the ____ for Biology 457 and Chemistry 610
Could you tell me the ____ for Biology 457 and Chemistry 610
Could you tell me the _____ for Biology 457 and Chemistry 610?
A room 's number
B room numbers
C rooms numbers
D numbers of room
我知道选B,但是Biology 457 and Chemistry 610我不够理解,什么意思?谢谢!