根据句意及所给的汉语意思完成单词，将答案写在右面横线上。

1. — How many                 (小刀) do you want, sir?    — Three.

2. Mum, is dinner ready? I'm so                 (饥饿的).

3. (吃)                  too much sugar is bad for your health.

4. Autumn is my favourite                  (季节).

5. Computers are widely used in the                  (现代的) world.

金属与二硫腙形成络合物，具有不同的K值，并受到pH值的影响，铅可被二硫腙萃取完全的pH为()

A.5～6

B.1～2

C.8.5

D.4～5.5

E.10～11.5