问题补充:
- have you worked? -Since 2 pm.
A. How soon
B. How long
C. How often
D. How far
答案:
A. How soon
(答案→)B. How long
C. How often
D. How far
解析:句意:你工作多长时间了?自从下午两点开始。A. How soon 多久,对将来时间的提问;B. How long多长时间;C. How often多久一次,对频率的提问;D. How far多远。由下文Since 2 pm自从两点可知上面提问的是多长时间,故选B。