短文改错。

     下面短文中有10处语言错误，请在有错误的地方增加、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（从第11 处起）不计分。

     He asked her to go and meet him outside the theatre. Mike's wife is very glad because they hadn't seen a film

for quite long time. She met her husband at the entrance to a cinema. Mike took out his wallet to get the ticket,

so they were not there. He then tried his pockets, but the tickets were not there, too. Mike looked very worrying."What's the matter?" asked his wife."Well," Mike explained,"I remember that I did with them. I put them on

the desk and forgot to pick them up before leaving for the office!"

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一般认为氟中毒的发病机理与下列哪种因素有关（）

A.使恒齿的牙釉质钙化变色

B.氟与钙结合沉降在骨中

C.抑制肾小管对磷的重吸收

D.使牙釉质疏松多孔

E.以上答案均正确