North Korea threatens to __________ from six-party talks aimed at ending North Korea's nuclear program unless its proper rights are to be satisfied.
The trade union intended to call on the workers to go on strike _______ the government’s limitation on exports.
Traditionally, college students hold a graduation ceremony to encourage themselves before they _______ on their life journey.
Our school requires that all students _______ on the campus.
At the routine office meeting, the headmaster insisted that the problems _______ paid special attention to.
_______ basic first-aid techniques will help you respond quickly to emergencies.