3. My sister is beautiful. She is slim and tall. She has rosy cheeks and blue eyes. She has blonde wavy hair. Her nose is straight and her teeth white and even. She is very funny and intelligent. 4. My twin brothers are quite short. They have short brown hair. Their eyes are dark and they have glasses. My brothers are very active and cheerful.

Đáp án:

 3. My sister is beautiful. She is slim and tall. She has rosy cheeks and blue eyes. She has blonde wavy hải. Her nose is straight anf her teeth are white anf even. She is very funny and intelligent

4. My twin brothers are quit short. They have short brown hair. Their eyes are dark and they have glasses. My brothers are very active and cheeful.

Giải thích các bước giải:

 Câu 3 : Sử dụng is và has vì she là số ít 

Câu 4 : Sử dụng are và have vì they là số nhiều