hit的過去式英語怎么寫

　　例句

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

　　找到能讓你大力擊球的準確握拍方法。

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

　　汽車顯然是撞上了一個交通標志牌后打滑失控的。

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

　　醫院被重炮擊中。

　　4.It hit me that I had a choice.

　　我突然意識到我有選擇的余地。

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

　　他承認自己跌到了一生中的最低谷。