Dạ được bạn, mình viết lại các câu có thêm chữ ở phía trước số cho dễ nhìn nha:

Câu 3: Iceland is colder than England. (using not as ... as) ⟹ England is not as cold as Iceland.

Câu 4: This chair is expensive. That chair is also expensive. (using not as ... as) ⟹ That chair is not as expensive as this chair.

Câu 5: His father likes play football. He likes playing football too. (using Like + N) ⟹ His father likes football.

Câu 6: People in Vietnam often decorate their houses before Lunar new year and Chinese people often do the same. (using Like + N) ⟹ People in Vietnam like decorating their houses before Lunar New Year, and so do Chinese people.

Câu 7: She is very beautiful and kind and her sister is also beautiful and kind. (using Like + N) ⟹ She is beautiful and kind, and so is her sister.

Câu 8: People in Australia often watch fireworks on special occasions and Japanese people do the same. (using Like + N) ⟹ People in Australia like watching fireworks on special occasions, and so do Japanese people.

Câu 9: Peter prefers to eat bread for breakfast, so does Mary. (using Like + N) ⟹ Peter likes eating bread for breakfast, and so does Mary.

Câu 10: Nam is tall and handsome and his brother is tall and handsome too. (using Like + N) ⟹ Nam is tall and handsome, and so is his brother.

Câu 11: This house is not the same as my old house. (using different from) ⟹ This house is different from my old house.

Câu 12: My mother's favorite food is noodle. My favorite food is rice. (using different from) ⟹ My mother's favorite food is different from my favorite food.

Câu 13: My best friend has a powerful personality. I have a weak personality. (using different from) ⟹ My best friend's personality is different from mine.

Câu 14: Life in the countryside is quiet and peaceful. Life in the city is exciting. (using different from) ⟹ Life in the countryside is different from life in the city.

Câu 15: My answer for this equation is "4" but Tom thinks it should be "5". (using different from) ⟹ My answer for this equation is different from Tom's.

Câu 16: Jack's mother is from Korea, so she can't speak English. (using because) ⟹ Jack's mother can't speak English because she is from Korea.

Câu 17: She doesn't get the first prize in the English Club. She is happy with the result. (using although) ⟹ Although she doesn't get the first prize in the English Club, she is happy with the result.

Câu 18: Hoa wants to study overseas, but she is afraid of living alone. (using although) ⟹ Although Hoa wants to study overseas, she is afraid of living alone.