他正在用扳手修理生锈的水管。

He is using a ___wrench to repair a rusty pipe.

他用力一拧，把生锈的螺栓拧开了。

He ___wrenched the rusty bolt open with a sudden twist.

听到他最好的朋友要搬去另一个国家的消息，他感到一阵心痛。

It was a ___wrench to hear that his best friend was moving to another country.