Some people were telling the police what ______(happen) to the car.
问题描述：
Some people were telling the police what ______(happen) to the car.
填什么 为什么 .
答
had happend
用完成时态,因为主句是过去时,所以用过去完成时
有些人正告诉警察那辆车发生了什么事.