Word form: 1. He has learn______for over 5 years (energy) 2. I suggest _______some money to help the poor (collection)

Unit 6-7
Word form
1.he has learn______for over 5 years (energy) 
2.i suggest _______some money to help the poor (collection) 
3.to my great_________, i didn't get the letter from her(disappoin)
4.he shouted and looked _______at me when i broke the vase(angry)