P 3-9 Les verbes devoir, pouvoir et vouloir
Hint for Question 4
See p. 130. Think about « ce n'est pas possible » as the reason that they don't go.
This hint opened in a full-sized browser window because your browser either does not support scripting or you have turned scripting off. You might try making the window smaller manually and leaving it open. This way, hints will open in that smaller window.
