could - should - would

Gap-fill exercise

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
Fill in the blanks with "could", "would" or "should".
1. I have a problem, I think you help me.
2. you help me please?
3. If I were you, I help my sister.
4. He swim when he was 4.
5. They wait for us. We are tired.
6. He help us if he knew our situation.