求英語大神幫我解析一下這篇英語閱讀

題目：

求英語大神幫我解析一下這篇英語閱讀
I like taking photos very much. Once I travelled by ship ___1___ a cloudy morning. It was in the afternoon ___2___ the weather turned fine. Therefore I wanted to take some photos. I was looking around and I saw next to me a lovely little girl ___3___ sit on her father s shoulders. ___4___ was luchy for me to meet such a perfect moment—the girl was smiling and the surrounding view was beautiful.
Without thinking I took a picture ___5___ the little girl at that moment. Her mother was surprised that a ___6___ strange was photographing her daughter. I explained that I was moved by that sight and showed them ___7___ photo on my digital數字的 camera. They loved it very much. I said I could email it to them when I got home.
Finally they gave ___8___ their email address. The next day I sent them their daughter s photo as I ___9___ promise. This morning I received a message back saying they are grateful and ___10___ they are very happy with the lovely photo of their daughter and a lovely memory of the day.



答案
1. on 2. that 3. sitting 4. It 5. of 6. stranger 7. the 8. me 9. had promised 10. that




求大神幫我解析一下答案解析,爲什麼要這麼填?

解答：

1.因爲有cloudy修飾morning,這是一個多雲的早晨,是一個特殊的早晨,所以需要用on,另外的例子還有on Saturday morning,都是一些特殊的早晨,所以用on.
2.in the afternoon後面的that是引導一個從句the weather turned fine,that後面的從句修飾前面的afternoon,也就是天氣變晴朗的那個下午.
3.這裡填sitting是省略了who is的用法,也就是lovely little who is sitting on...,所以要用現在進行時
4.It was lucky for me to do這是一個固定用法
5.the picture of sth也是固定用法,...的照片
6.stranger陌生人
7.the photo要表示特指,那張在我相機裡面的照片
8.gave me給我的意思
9.had promised已經保證了,這裡是在過去保證的,所以過去完成時
10.that也是引導從句,This morning I received a message back saying that they are very happy with the lovely photo of their daughter and a lovely memory of the day,因爲and是並列結構,所以你可以這樣看.