1. 用本单元出现的单词或短语的正确形式替换画线部分，保持句意不变。

1. （1） He gave me some advice about ordering the meal.   
3. （2） The black chocolate tastes a bit bitter.   
5. （3） I'm dining out with my friends this evening. Could you please suggest a nice restaurant?
7. （4） The meat has been carefully selected and cooked to be easy to cut and eat.
9. （5） People are different from one another in their ability to handle stress.
11. （6） Having smoky fish is not a local tradition to celebrate the New Year.   
13. （7） He put them under a microscope and noticed that they each have some very small marks on the surface.   
15. （8） You'd better eat food that contains a lot of vitamins and minerals such as fruit, vegetables, whole grains and non-fat dairy.
17. （9） The table manners can sometimes be difficult to understand if you've never attended a formal dinner before.     
19. （10） The steak my uncle made yesterday was particularly tender and delicious.