短文改错。

     假如英语课上老师要求同学们交换修改作文，请你修改你同桌写的以下作文。

文中有10处错误，要求你在错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号(∧)，并在其下面写上该加的词。

删除：把多余的词用斜线(＼)划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：1. 每处错误及其修改均仅限一词。

          2. 只允许修改10处，多者(从11处起)不计分。

     We have a old musical instrument. It called a clavichord. It was made in Germany in 1681. Our

clavichord is kept in the living room. It has been belonged to our family for a long time. The instrument

was bought by my grandfather many years before. Recently it was damaged by a visitor. She tried to

play jazz in it! She struck the keys much hard and two of the string were broken. My father was shocking.

Now we are not allowed to touch them. It is being repaired by a friend of my father.

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诊断肺炎球菌肺炎下列哪一项最有价值（）。

A.咯铁锈色痰

B.白细胞总数及中性粒细胞增高

C.肺部湿啰音

D.肺实变体征

E.胸部X线见大片致密阴影