----Do you know for Shanghai last night?-------At 9:00.a. what time he left b. what time

问题补充：

----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

答案：

解析：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。