These may be prepared up to a day in advance.

These can be prepared up to 12 hours in advance.

This may be prepared up to two days in advance.

This can be prepared up to an hour in advance.

May be prepared up to 1 hour in advance to this point.

There is no way he could have been prepared in advance.

The third day Michael started asking questions he'd prepared in advance.

They know their next move and prepare for it in advance.

Each program is prepared at his home only a few days in advance.

Most players also start preparing at least a month in advance.