1.The number of the students in this city has _____ (增加了6倍) in comparison with 2001.
2. _____ (有些大一新生打定主意) to pursue a master’s degree after undergraduate studies.
3. _____ (不管任务多么艰巨), we must fulfill it in time.
4.He had understood nothing, _____ (也没尝试着去) understand.
5. _____ (随着时间的流逝), they forgot their bitter sufferings.