I.1 more difficult                        II 1 went 

  2 more dangerous than             2 lived

  3 more exciting than                  3 sold

  4 better than

  5 hotter than

III

1 That is tallest building in the city.

2 Lan's house is smaller than my house

I,

1,more difficult than 

2,more dangerous than

3,more exciting than

4,better than

5,hotter than

II,

1,went

2,lived

3,sell

III,

That bullding is the taller in the city

My house is smail than Lần house

(Mik bt nãy mik mới tl ròi nhưng mik đang          cần điểm,bn thông cảm nhé UvU)