一切事物都处于永不停息的运动、变化、发展之中。下列对运动、变化、发展三者关系认识正确的有[ ]

①运动和变化就是发展

②发展是一种运动和变化

③只有前进的、上升的运动变化才是发展

④发展是事物的前进和上升的趋向性

A．①④

B．①③

C．②③

D．②④

I ______ two tickets for the football match. Would you like to go with me? [ ]

A. bought

B. buy

C. had bought

D. have bought