4. Fill in : out of, up with, off, back, on :

1. Keep **up with** the latest on home security systems to make sure your house is protected. 2. Ask your children to keep **out of** the kitchen while you are cooking. 3. Keep **off** wet floors, as they are quite slippery. 4. If a small fire starts in the kitchen or other part of the house tell children to keep **back**. 5. Keep **on** reminding everyone in the family to lock all doors. **Объяснение:** 1. **keep up with** - быть в курсе, следить за. 2. **out of** - вне, за пределами. 3. **off** - держаться подальше от чего-либо. 4. **back** - назад, отступить. 5. **on** - продолжать что-либо делать.