她慢慢往后倒车，避开那棵树。

She carefully ___backed the car to avoid hitting the tree.

很多粉丝在社交媒体上支持这位歌手的新专辑。

Many fans ___backed the singer's new album on social media.

司机慢慢地把卡车倒出车库。

The driver slowly ___backed the truck out of the garage.

这个环保项目得到了当地企业的支持。

The environmental project was ___backed by local businesses.