问题
选择题
—Do you know ______ he is going to stay in Shenzhen?
—Sorry, I don’t know. Maybe a few weeks, but I’m not sure.
A．when
B．how long
C．what time
D．how soon
答案
答案：B
考查疑问词的用法。根据a few weeks可推测所问的是时间段，用how long 提问。