Look at these rules for the computer game. Write sentences with ‘must’ and ‘mustn’t’.

Example 0. Find the magic key.

Answer 0. You must find the magic key.

1. Don’t let the guards catch you.

2. Give the coins to the old man.

3. Don’t open the window on the third floor.

Write the comparative form of the adjectives:

1. slow
2. large
3. heavy