I/

1.D

2.D

3.C

4.C

III/

a.Watch Children

b.No Pedestrian Crossing

c.No Trucks

d.Right Curve Ahead

e.Right Turn Ahead

f.Right Lane Ends

g.Emergency Vehicle Warning

h.Danger Railroad Crossing

II/

1.C

2.D

3.D

4.B

5.C

III/

1.How does Nam usually go to school?

2.What did your grandfather use to do in the West Lake every afternoon?

3.Where are there a lot of trucks and cars in the rush hour?

4.What did the students use to be taught about when they studied in secondary school?

5.What does Hung always drive very carefully?

6.How far is it from HN to HP?

IV/

1.is

2.is

3.jam

4.went

5.Are

6.want to

7.from

8.catch

9.in

HOKTOT!!!

@latte