Are the one day tours done in English or Chinese speaking guides

Well, most itineraries offered by the Tour Bus Center are independent without guides, only transportation and tickets.
Some of the itineraries do include guide service. But as most of the group members are Chinese, they are more likely to provide a Chinese speaking guide.
If you like, here are some SH one day itineraries with English speaking guide: https://www.travelchinaguide.com/package/shanghai/12.htm