contoh dialog giving instructions?

A : have you sliced the garlic? B : Yes, I have. So, what should I do then? A : Then, put one slice on the glass, please. B : O.K. It’s done. A : Good. Now, give me the glass. Let’s observe it under the microscope B : Sure

1. A; Come in please!
   B: Thank you.
2. A: Please put the book on the table!
    B: All right.
3. A: Clean the whiteboard,please!
    B: Yes,Ma'am.
4. A: Please open the window!
    B: Of course!