她将废纸揉成一团扔进了垃圾桶。

She ___scrunched the waste paper into a ball and tossed it in the bin.

我踩到地上的薯片袋时，它发出咯吱咯吱的声音。

The potato chip bag ___scrunched loudly when I stepped on it.

她皱起额头，专注地思考着数学题。

She ___scrunched her forehead while focusing on the math problem.