I. Comparative
1. higher
2. narrower/ more narrow
3. better
4. worse
5. more exciting
6. farther/ further
7. bigger
9. larger
10. lazier
11. more
12. less
VI
tea-> some tea (uncountable N)
butter -> some butter (uncountable N)
song -> a song/ some songs (countable N)
living room -> a living room/ some living rooms (countable N)
hour -> a hour (countable N)
coffee -> some coffee (uncountable N)
child -> a child/ some children (countable N)
homework -> a homework/ some homeworks (countable N)
key - a key/ some keys (countable N)
orange-> an orange/ some oranges (countable)

c. trung hòa về điện

nêu nguyên nhân gây ô nhiễm môi trường của giun đốt?
bạn nào trl dc thì mình cảm ơn nhé:)))

Nguồn cung cấp nước cho sông chủ yếu từ đâu?

 A. 

Nước ngầm

 B. 

Nước mưa

 C. 

Nước sương

 D. 

Nước băng, tuyết