Question

----Do you know __________ for Shanghai last night?
-------At 9:00.
a. what time he left        b. what time does he leave 
c. when he bought the car  d. where he bought the car

Answer 1

a

此题考查宾语从句的相关内容，根据答语可知询问的是时间，故用when或what time来引导，但宾语从句必须用陈述句语序，故选a。