单项选择题
We （）our dinner when a policeman came to the door.
A. just had B. have just had C. just have had D. had just had
单项选择题 John kept quiet about the accident （）lose his job.
单项选择题 —（）are you trying to prove to the police —Where I was last night.
单项选择题 They wanted to go to the French restaurant （）they had dinner the day before yesterday.
