问题
选择题
—That actor often joins in dfferent activities in Beijing. Do you know ?
—For 5 years.
A．how soon he will come back
B．how long he has stayed there
C．how long has he stayed there
D．how often does he go there
答案
答案：B
考查宾语从句的用法。根据回答“For 5 years”，需要用how long“多长时间”来提问；宾语从句使用陈述语序，确定B正确。