问题
选择题
—________ will you stay in Shenzhen for your summer vacation?
—For about two weeks.
A．How far
B．How often
C．How soon
D．How long
答案
答案：D
考察特殊疑问词。A对距离提问；B对频率提问；C对将来时提问；D对一段时间提问；根据回答for about two weeks可知是对一段时间的提问，故D正确。