我会帮你做作业，只要你答应努力学习。

I'll help you with your homework ___as ___long ___as you promise to study hard.

随意用我的车，只要你今晚还回来。

Feel free to use my car, ___so ___long ___as you return it by tonight.

你可以选任何电影，只要不太恐怖。

You can choose any movie, ___as ___long ___as it's not too scary.