I
1 If we plant more tress, the air will be fresher.
2 My school has over 26 classrooms.
3 They are beautifull girls.
4 Living in Ha Noi isn't as expensive as living in HCM city.
5 I haven't seen Jane for 5 months.
II
1 Mr and Mrs Brown are Peter's parents.
2 Why don't we go to the cinema.
3 What a beautiful dress!
4 Although Lan can't sing, she can play the piano very well.
5 Nam is the most intelligent student in our class.