stuff|stuffed|stuffs|stuffing

她是位优秀的老师——她真的很在行。

She's an excellent teacher - she really knows her ___stuff.

她确实很在行。

She knew her ___stuff all right.

作为一名经验丰富的程序员，他真的很在行。

As a seasoned programmer, he really knows his ___stuff.

他把文件塞进公文包就离开了。

He ___stuffed the papers into his briefcase and left.

这个箱子绝对满了——我再也塞不进任何东西了。

This case is absolutely full - I can't ___stuff another thing into it.

匆忙之中，她把旧信件塞到了一排书后面。

In a hurry, she ___stuffed the old letters behind a row of books.

在长途旅行前，他经常用零食塞满背包。

He often ___stuffs his backpack with snacks before a long trip.

火鸡已经准备好用香草和面包屑来填馅了。

The turkey is ready for ___stuffing with herbs and breadcrumbs.