I  have a good friend． 1  name is Peter．We study in Beijing Sunshine Secondary Schoo1．We are in the same(同一个)class．He sits in front of  2  ．His favourite lesson is Music．He   3  many CDs．He likes  4   music very much．He likes playing football，t00．After school we  often   play  football in the  5   ．He is very helpful．We often help each   6  ．

Peter  is  not a Chinese．He is from   7   ．He comes to Beijing  8    his family．His father is  a doctor and his mother is a nurse．They work from Monday        9    Friday．At weekends，his mother  likes shopping and his father likes fishing．Sometimes they go to the park．They all like Chinese  food．They    lO    very happy．

1．A．He    B．His    C．She

2．A．I    B．my    C．me

3. A．have    B．has    C．there is

4．A．1isten    B．1isten to    c．1istening to

5．A．classroom    B．library    c．playground

6．A．one    B．other    C．others

7．A．England    B．Chinese    C．Eng]ish

8. A. from    B．on    C．with

9．A in    B．to    C．with

10. A．be    B．am    C．are

患儿男性，患有急性淋巴细胞白血病，先用甲氨蝶呤治疗，经检查:血小板低于正常值，粪便中带血。下列药物中能减轻甲氨蝶呤毒性的是（）

A.VitK

B.乙酰半胱氨酸

C.去铁胺

D.青霉胺

E.甲酰四氢叶酸