Master of Grammar

All you can you have learned. Now rest you can.

Rules

 * You can only get this card if you write a 100% grammar test.
 * You cannot trade this card.
 * This card can only be used by the person who earned it.
 * The teacher can veto the use of this card.
 * During the card's effect you can only do things which do not disturb the other students (e.g. checking your phone, reading a book, studying)