Question

----______are they staying in Beijing?----For three days. A．How often B．How long C．How o

----______are they staying in Beijing?----For three days. A．How often B．How long C．How old D．How soon

Answer 1

B

试题分析：How often 多久一次；How long多长；How old 多大；How soon多久。根据下文答语，大约三天。可知上文提问时间长短，故选B。 点评：该题型是属于英语考试中的基础题型，是必考内容。答题前首先要理解每个选项的基本含义及用法，并注意交叉含义间的区别，然后根据答语，以及该疑问词在句子中承担的句子成分选择正确答案。