on way ticket only for application

Hi. The requirement is for "photocopy of the roundtrip airline ticket and hotel reservation". I will have RT air from NYC to HKG and one way ticket into mainland. From there, I will travel by bus within China and stay at local hotels and then take bus back to HKG for trip back to US. Are photocopy of RT from NYC to HKG, one way ticket to mainland and hotels enough to fulfill the requirement (no photocopy of transport back to HKG since I get bus tickets when I am there)? Thanks.