以下标有题号的每一行均有一个错误，请找出，并按下列情况改正：
此行多一个词：把多余的词用斜线（\）划掉，在该行右边横线上写出该词，并也用斜线划掉。
此行缺一个词：在缺词处加一个漏字符号（ʌ），在该行右边横线上写出该加的词。
此行错一个词：在错的词下面一横线，在该行右边横线上写出改正后的词。
Dear Grandpa,
How are you those days? I have been missing you very         
much after I went to college a year ago. Whenever I think of     
to old days, I feel very happily. I still remember when I        
was child, you always held me in your arms and told me stories    
till I fall asleep. We often went to the fields to enjoy the     
Pleasant view there. You told me the name of different plants     
and their characteristics. Gradually, I became interesting in     
Biology and chose to learn biology when I entered into the       
College. Now my friend Ann, together with me, are going to do
field study                                                      
and the findings will be use as materials for our research.     
Since we’ll do the study in our hometown, I hope to see you by then.
Yours,
Daisy