我受够这些孩子了！

I ___am ___at ___the ___end ___of my ___rope with these kids!

经历了所有延误后，你一定已经忍无可忍了。

After all the delays, you must ___be ___at ___the ___end ___of your ___rope.

她终于忍无可忍，辞去了工作。

She finally ___reached ___the ___end ___of her ___rope and quit her job.