It’s my           to make sure that the disabled people in our neighborhood have access to all public buildings.

He managed to reach the summit of his career, but it was at the ________ of his health.

Most graduates in big cities are suffering form       connected to soaring house prices and job hunting.

Though this kind of _______ has some _______, it is good enough for construction(建筑).

Please speak in a _______ , or the teacher will hear what you say.