| Someone is tired out. |
You should take a rest. |
| It's too far to walk. |
You should take a taxi. |
| It's raining. |
You should take an umbrella. |
| Someone hasn't got any money with them. |
You should pay by cheque. |
| Someone is feeling hot and has a headache. |
You should see a doctor. |
| Someone has seen somebody breaking into a shop window. |
You should call the police. |
| Someone has to get up early in the morning. |
You should set your alarm clock. |
| Someone is going to live overseas. |
You should learn the language before you go. |
| It's going to be a cold day. |
You should wear an overcoat. |
| Someone doesn't know which way to go. |
You should ask a policeman. |