1. UNIT 15
Suggestions 提議

2. Suggestions: Let’s, Could, Why don’t, Why not, How about

3. Let’s take the ferry. stay in a castle.

4. Let’s not take the ferry. stay in a castle.

5. I could take the ferry. You stay in a castle. He She We They

6. Why don’t I take the ferry? we stay in the castle? you they

7. Why doesn’t he take the ferry？ she stay in the castle?
Why don’t
Why doesn’t he take the ferry？
she stay in the castle? ？ ？

8. Why not take the ferry？ stay in the castle?

9. How about taking the ferry？ staying in the castle?

10. How about the ferry？ a castle?

11. Let’s take a look at Grammar Notes on page 167.