Read and write. 

A: 1.                                 ?

B: I have a headache

A : 2.                                 ?                                                            

B: I feel sick.

A: 3.                                 ?

B: My father is 32 years old.

A: 4.                                 ?

B: No, he is younger than me.

A: 5.                                 ? 

B: I'm 45 kg.

哪种有害金属元素中毒可引起水俣病。（）

A.铅

B.甲基汞

C.砷

D.镉

E.铜