Do these all work?
1. do up a parcel to send it to my mother - opposite = undo a pacrcel
2. make a parcel to send it to my mother - opposite = open
3. wrap a parcel to send it to my mother - opposite = unwrap
4. pack a parcel to send it to my mother - opposite = unpack
Also, does this work?
'send the books parcel post' instead of '.... BY parcel post'?
Thank you.