1.  Digging a pit in these woods is the hard part.

2.  Getting Dad to agree will be the hard part.

3.  However, the hard part of Operation Restore Hope May have only just begun.

4.  No, the hard part was wrecking the safe and leaving a mess.

5.  Not all sponges contain hard parts capable of being fossilized.

6.  That had been the hard part, immensely hard, getting the permission.

7.  The hard part is sorting the good memories from the bad.

8.  The hard part was in the years to come.

9.  The hard part would be working it into her schedule.

10.  The skeletal elements of those with hard parts are fine, often branching elements called spicules.