Fermented foods are free of contamination.A．TrueB．False

Anti－microbial substances in fermented foods cause acidity.A．TrueB．False

Cooked foods can be stored longer than fresh foods.A．TrueB．False

Cereals can be fermented by adding water and letting the dough stand.A．TrueB．False

Traditional fermented foods are being replaced by commercial products in some locations.A．

My father and mother are both teachers.A.TrueB.False

周末爸爸去医院看我。 ( )A.TrueB.False