P.55

1)

• Don't close the door.
• Don't open the window!
• Let's not take this train!
• Don't turn right at the bank.
• Let's not go with them!
• Please don't sit down.

2)

• Don't buy
• Be
• Bring
• Take
• Wake
• Don't eat
• Fill

3)

• Let's finish work
• Sit down!
• Go
• Close the door
• Close the window
• Sleep!

4)

• Watch
• Stop
• Take
• Let's watch
• Let's not go
• Help
• Talk