alter|altered|altering

我们不得不改变一些计划。

We've had to ___alter some of our plans.

放弃我们的汽车大大改变了我们的生活方式。

Giving up our car has ___altered our lifestyle a lot.

而这丰富的新经历和启示应该会导致改变、改善和拓宽我们对生活的看法。

And this abundance of new experiences and revelations should result in ___altering, improving and broadening our outlook on life.