Ta thấy trong bài tất cả đều sử dụng So sánh hơn ở thể khẳng định

=> Công thức so sánh hơn thể khẳng định :

-Tính từ ngắn :

$\text{S1+ is/am/are + adj+er + than + S2  }$

-Tính từ dài : 

$\text{S1+ is/am/are + more + adj + than + S2  }$

--------------------------

$\text{2.The red car is more expensive than black car.}$ 
$\text{3. That film is more boring than this one.}$ 
$\text{4. That river is shorter than this one .}$ 
$\text{5.Miss Nga is younger than Miss Lan .}$ 
$\text{6. Your kitchen is bigger than mine.}$ 
$\text{7.Her new house is smaller than her old house.}$ 
$\text{8. The white dress is cheaper than the black dress.}$ 
$\text{9. According to me , Math iss more difficult than English. }$
$\text{10.That computer works worse than this one.}$