Ask learners who they think could be at the door when they hear "knock, knock." Write the beginning of this sentence on the board for them to copy and complete. What will they have learned at the end?

"Knock, knock" could be a fun way to engage learners in a guessing game. By asking them to think about who could be at the door, they are practicing their critical thinking skills and creativity. At the end of the activity, they will have learned how to use their imagination to come up with different possibilities and have fun with the guessing game.

Sentence on the board:

When I hear "knock, knock," I think it could be...

What learners will have learned:

- To identify different people who might be at the door
- To use "could" to express possibility
- To improve their listening skills