hit的过去式英语怎么写

　　例句

　　1.Find the exact grip that allows you to hit the ball hard.

　　找到能让你大力击球的准确握拍方法。

　　2.The car had apparently hit a traffic sign before skidding out of control.

　　汽车显然是撞上了一个交通标志牌后打滑失控的。

　　3.The hospital had been hit with heavy artillery fire.

　　医院被重炮击中。

　　4.It hit me that I had a choice.

　　我突然意识到我有选择的余地。

　　5.He admits to having hit the lowest point in his life.

　　他承认自己跌到了一生中的最低谷。