在细胞分裂过程中出现了甲、乙2种变异，甲图中英文字母表示染色体片段。下列有关叙述不正确的是（ ）

文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号( ) 并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线，并在该词下面写出修改后的词。

注意:每处错误及其修改均仅限一词；只允许修改10处，多者（从第11处起）不计分。

Dear Mrs. Green,

    I'm Wang Fen g, chairman of the Students' Union of Yucai Middle School, that is close to your university. I'm written to invite you to be a judge at our English speech contest. It will to be held in our school in June 15. It will starts at 2:00 pm and last for about three hours. Ten student will deliver their speeches on the giving topic "Man and Nature". We hope that you will accept our invitation so it is convenient for you. Please call me 44876655 if you have any questions.

I am looking forward for your reply.

                                                                                                                                                                                    Li Hua

____ ____ ____ ____ ____ ____ ____ ____ ____ ____

    What do you do on weekends? Some people like to stay at home, but others like to leave home and do other things. My friend, Tom works hard in a factory. He has a son and a daughter.

    On weekends, he usually does the same things. On Saturdays he washes his car and clothes. On Sundays, he goes to a farm with his family by car. His parents live there. The farm isn't very big, but there're often many things to do on the farm. The children help feed (饲养) the animals. There are many animals on the farm. You can see sheep, cows, horses and pigs. Tom and his wife help in the fields. At the end of the day, children are very tired and hungry. Tom's mother gives them a big meal. They are very happy.