1) Sour cream, bad meat and fish can taste sour.
2) Sweets, cakes and apples can taste sweet.
3) Lemon, green banana and black coffee without sugar can taste bitter.
4) Fish with sugar, plums with mustard and unusual fruit can taste unusual.
5) Buns, porridge and ice-cream can taste nice.
6) Cninese food, chili pepper and spicy salad(with vinegar and mustard) can taste hot(spicy).