do you have the book, Like the pdf so i can give you the answer
The answer is the third sentence: "Finally take care to put away all your supplies and clean your workstation, so you are ready for your shift in the morning." because the word 'so' is a conjuction.
In is the answer
Hope it helps :)
Ok so im gonaa search some information for your problem i wil be right bsck with a answer for you :)