save|saved|saving

我想存钱买一辆新自行车。

I want to ___save money to buy a new bicycle.

迈克尔正在存钱买一台新电脑。

Michael is ___saving up for a new computer.

我给你留了些食物。

I've ___saved some food for you.

系安全带挽救了许多生命。

Wearing seat belts has ___saved many lives.