1. seize up
All my body have seized up after the whole day's hard work.
2. buff up
He buffed up his shoes to a bright shine.
3. take ages to
He took.ages to play computer games.
4. slime
The slime on the ground made me sick.
5. canopy
He stared at the canopy and said nothing.
summary:
Harry told Ron what had happened when Ron came back. They both had no idea about that.