1 Your plane leaves at 10.00. You should get to the airport by 8.00.
2 If you travel by undergroun in London, you should remember to press the button on the door to open it.
3 You should keep an eye on your personal luggage. Someone can steal it.
4 You shouldn't waste your money on things you don't need.
5 You shouldn't walk alone in new sity. You can get lost.
6 When you go to London. You should visit Westminster Abbey.
