In reality,    1     (使我们震惊的是，主语从句) large amounts of food have been wasted in restaurants and canteens. Food waste can not only lead to the environment’s being polluted     2     (而且引发更为严重的食物短缺). 3.     3     (考虑到这个令人苦恼的情况), a campaign has been launched in the past months to     4     (阻止学生们浪费粮食).     5     (对于我们学生来说，少点食物比浪费食物更重要，主语从句). Now,   with students forming the habit of cleaning their plates, we are     6     (convince) that our school canteen will soon be kept free of wasted food.