Compléter Must and Mustn´tVersion en ligne Must and Mustn´t par Andrea Valdiviezo 1 mustn´t mustn´t must must must must mustn´t mustn´t must mustn´t You recycle . you deforest , you literer . you reuse , you destroy animal habitats , you mine , you clean the oceans , you reforestation , you use plastic , you save water .