Question

What did John ask you just now?
--- He wanted to know how long _________ when I reached the cinema.

A．had the film been on	B．the film had started
C．the film had lasted	D．had the film ended

Answer 1

C

从句要用陈述语序，又因为句中有how long所以动词应该用延续性动词，选C。 “约翰刚才叫你干什么”“他想知道当我到达影院时电影演了多长时间了。