他沮丧地把试卷揉成一团扔进了垃圾桶。

He sadly ___crumpled the test paper and tossed it into the bin.

听到这个坏消息，她一下子瘫倒在沙发上。

Upon hearing the bad news, she ___crumpled onto the sofa.

他不小心把纸揉成了一团。

He accidentally ___crumpled the paper into a ball.