Question

—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

Answer 1

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。