It is only when you overcome all difficulties and reach your goal ______fully aware that the way to success is not paved with flowers.

A．All the universities are private institutions.
B．Students have to pay fees and living costs.
C．Poor students can receive a personal grant from the local authority.
D．Students normally do outside work during the academic year.

A．The financial conditions of the airline were just OK.
B．It would be bought by the Colombian Aviation Authority.
C．This was its second time to have lost its airplane this year.
D．The company is on the edge of going bankruptcy.