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3. Please …………………………………………. when you see the caution sign.

5. The …………………………………………. between the two cities is 100 kilometers.

8. When you …………………………………………. a package, you think you will receive it

4. The …………………………………………. between the old and new systems needs improvement.

8. when something is like a ruler

2. Ghosts are often depicted as …………………………………………. spirits in stories.

7. The shortest …………………………………………. between two points is a line.

1. Follow the signs to reach your destination; it's a simple …………………………………………. .