II
1-A
2-D
3-D
4-B

II/
1) I have Math lessons on Monday and Friday.
2) His new house is on Tran Phu Street.
3) Mai brushes her teeth every morning.
4.) We are travelling to the countryside by bus.
9/ How old is your brother? 
10) My teacher lives in a big city.
11) This is Lan. Her house is new.
12) Nam and Minh are playing soccer in the yard at ther moment.  

1A 2A 3C 4D 9C 10A 11C 12c