用括号内所给的动词完成短文，必要时可加助动词或情态动词。

     I have a friend(1)_____(call)Tom. He is an English boy. Now he(2)_____(1ive)in Yangzhou with my family. Tom

(3)_____(not know)Chinese, but he is learning it. He often(4)_____(speak)Chinese to my parents. Irle and his Chinese

friends, but sometimes we don't understand him because he isn't good at it yet. It(5)_____(be) a Sunday morning. Tom

(6)_____(go)out. He wanted(7)_____(buy)a Walkman. He walked along the street. He(8)_____(look)for a shopping

mall, but he didn't knew where(9)_____(go). Luckily, a girl helped him (10)_____(find)the mall. He was very happy and

bought a nice Walkman.

1. _____ 2. _____ 3. _____ 4. _____ 5. _____ 6. _____ 7. _____ 8. _____ 9. _____ 10. _____

我同某进出口公司和德国商人签订一份买卖钢材的合同，由德国商人向我国公司提供钢材200吨，交货条件为CIF上海港。我进出口公司依照合同规定按时开出以该德国商人为受益人的不可撤销信用证。德国商人收到信用证后，按时将货物送亡船，取得船公司签发的已装船提单，并办理了有关海上运输的保险合同，取得保险公司签发的保险单。轮船进上海港口时，由于操作不慎，轮船和码头相撞，轮船和码头严重受损，钢材大部分掉人海中。下列关于此案的表述正确的是哪些( )

A．钢材意外灭失的损失由德国商人承担

B．德国商人不能凭信用证和有关单据要求银行付款

C．我国公司的损失可以要求保险公司赔偿

D．轮船公司应当负责赔偿上海港码头的损失