根据首字母提示或汉语意思填空，使短文意思通顺，结构完整。When I was young, I studied hard all the time. But (1)uunlucki

根据首字母提示或汉语意思填空，使短文意思通顺，结构完整。
When I was young, I studied hard all the time. But (1)uunluckily ,my grades were low and I nearly lost (2) (信心) confidence in myself .
My father was worried about it .He took me to the garden .Pointing to two rows of trees ,he asked me ,Do you know what trees they are ? I watched (3)ccarefully  and answered, They are poplars and gingkoesMy father asked me to (4)cpare  poplars with gingkoes and find out the (5)(不同) differences  between them .It’s very clear that poplars are much (6)ttaller  than the gingkoes.
My father told me the two rows of trees (7)（种）were planted  at the same time . While being planted , they were as tall as each other .With the same sunlight ,the same water and the same care, but why are the poplars so tall and the gingkoes are so (8)ssmall ?
I stood there without (9)ssaying  a word . Then my father said ,Boy ,you know ,the valuable things often grow up slowly.
I knew what my father meant by saying so .From then on, I studied harder and harder .And my grades (10)iimproved  greatly .Three years later ,I succeeded in entering Beijing University .