"Customers who hear music on an open telephone line while placed on hold are less likely to hang up"
Could you tell me what words were omitted between "while" and "placed"? I mean the subject of "place on hold". Is it "customers' being " or "telephone lines' being"?
Thank you for your answer in advance
Top answer
Customers who hear music on an open telephone line while [ customers are ] placed on hold are less likely to hang up.
— RandomGuy
Customers who hear music on an open telephone line while [ customers are ] placed on hold are less likely to hang up.
Free · every Monday
Get the Weekly English Kit 📬
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.