问题
选择题
Students are always interested in finding out they can go with a new teacher.
A．how soon
B．how often
C．how long
D．how far
答案
答案：D
how soon多久，表示将来， how often 多久一次，表示频率， how long多长时间，how far 多远，表示距离，学生们总是感兴趣弄清楚他们和一个新老师能走多远。故选D。