I)
1.an uniform
2.an apple
3.an orange
4.a hours
5.a book
I.
1. A uniform
2. An apple
3. An orange
4. An hour
5. A book
II.
1. Knives
2. Countries
3. Leaves
4. Keys
5. Tomatoes
6. Photos
III.
1. Taller
2. Hottest
3. Carefullest
4. More crowded
Đây là những câu trả lời mà mình nghĩ là chính xác, chúc bạn may mắn ^^
II.
1.knives
2.countries
3.leaves
4.keys
5.tomatoes
6.photoes
III.
1. taller
2. hottest
3. most careful
4. more crowded
I)Đien a/an
1.an uniform
2.an apple
3.an orange
4.a hours
5.a book
II)Chuyen so nhieu
1.knife-knives
2.country-countries
3.leaf-leaves
4.key-keys
5.tomato-tomatoes
6.photo-photoes
III)Hon hay nhat
1.tall-taller
2.hot-hotest
3.the most careful
4.more cowded
Chuc ban lam bai tot.
I. Điền a/an
1.a uniform
2.an apple
3.an orange
4.an hours
5.a book
II. Chuyển số nhiều
1. knife->knives
2. country->countryes
3. leaf->leaves
4. key->keys
5. tomato->tomatoes
6. photo->photo
III. Hơn hay nhất
1. Hoa is (tall)taller than Lan
2. Summer the is a (hot)hottest in year
3. She is the (careful)most careful in my class
4. City is (crowded)more crowded than village