249.For us Senior Three students,believing that our hard work will _____ can strengthen our confidence.
A.take off
B.pay off
C.keep off
D.get off
250.A completely new situation will ______ when the examination system comes into existence.
A.rise
B.arise
C.arouse
D.raise
249.答案是B；take off 脱掉，起飞； pay off还清债务，得到好结果;keep off远离，不靠近;get off下车，脱掉。
250.答案是B；rise vi.加强，上升，增加;arise vi.起身，上升，出现;arouse vt.唤起，唤醒，激发；raise vt.加强，上升，增加，饲养。
