gape|gaped|gapes|gaping

那个破旧的袋子裂开了一个大口子。

The old bag ___gaped with a large hole.

破旧的窗户大开着，灰尘不断飘进来。

The broken window ___gapes wide, letting dust float in.

她惊讶得张大嘴巴。

She stood there with her mouth ___gaping in surprise.