How did it come （） that you made a lot of mistakes in your homework.

单项选择题I am to inform you, that you may, if you wish, attend the inquiry, and at the inspectors discretion state your case （）or through an entrusted representative.

A．in person
B．in depth
C．in secret
D．in excess

单项选择题The （） of gifted children into accelerated classes will start next week according to their academic performance.

A．segregation
B．specification
C．spectrum
D．subscription