Scripting and Programming Fundamental assessment

Hello
I’m stuck with python.
I can’t find my last gap to be filled.
Could anyone correct me, please?

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I would also inform you that the slice hasn’t the “xx”.

All the best
Slvs

The answer key for slicing “All work and no play make ack a dull boy.” is wrong. Your answer is correct. I will send you the flag out of band and I will correct the assessment.