20．We met _____ and have become good friends since then.
| A．by mistake | B．by accident | C．by ourselves | D．by the way |
——Recent years have________ rapid changes of my hometown.
——Yes, I could hardly recognize it when I arrived yesterday.
| A．watched | B．contributed | C．made | D．witnessed |
——The speaker got confused, and started _________ himself.
——No wonder no one believes what he said.
| A．contrasting | B．comparing | C．proving | D．contradicting |
Affected by the earthquake happening in March, seven springs____________.
| A．dried up | B．dried out | C．dried off | D．dried away |
Usually a child’s behavior is a ________ of his family environment.
| A．recognition | B．reflection | C．return | D．record |
Many Chinese universities provide scholarships for students ______ financial aid.
| A．in favor of | B．in honor of | C．in face of | D．in need of |