她总是喜欢闲聊琐事，却没意识到这要花多少时间。

She just loves to ___gossip about trivial things without realizing how much time it takes.

他一直在那吹嘘他的新跑车有多快。

He keeps ___gassing about how fast his new sports car is.

我们得先给车加满油才能出发。

We need to ___gas up the car before we can leave.