I)1. D: There are children or schools ahead.

  2. A: You can only go straight or turn left.

  3. D: Vehicle can't park here.

  4. A: There is a hospital ahead.

  5. C: You can't go from here.

  6. D: You are not allowed to turn right.

  7. B: There are traffic lights ahead.

  8. C: You can't cycle here.

II)1.You can't park here - it's a no parking zone.

   2.Don't drive so fast! You must keep within the speed limit.

   3.You can cross the street at the traffic light only when the walking signals turn green.

   4.This red cross sign tells us that there is a hospital ahead.

   5.Right-handed traffic means that vehicles must drive on the right side of a road.

1. D

2. A

3. D

4. A

5. C

6. D

7. B

8. C