'Most of my peers would be embarrassed to have their dad HANG around with them'
My question is should we change 'hang round' into 'hanging around' as it means 'WHO hang around with them'
The sentence above seems to omit the 'who', which is the subject of the independent clause '(thieir dad) hang around with them'
Could anyone good at English comment on that?
Thanks
更新1:
Okay, even 'dad' is wrong and should be changed into 'dads', I still don't understand why 'hang' is correct, can someone explain more details?