Plural forms of the nouns that ends with f or fe

(See all Grammar - Nouns exercises )
1. roof
2. chief
3. wife
4. knife
5. wolf
6. leaf
7. life
8. self
9. belief

Take a look other exercises

Countable and uncountable nouns
Basic Time Expressions - Telling time in English
Auxiliary (modal/helping) verbs
Days and expressions about days in English
Adverbs of degree
Describing people in English
Common comparative adjectives
Gym-Fitness Vocabulary
Making question sentences
Creating passive forms of given sentences