小题1:C
小题1:A
小题1:B
小题1:A
小题1:C
小题1:根据I am a slow（迟钝的）student. Most of my classmates are much better than me. So I usually get worried. 描述，可知选C。
小题1:根据What do you think I should do?可知小明写这封信主要就是为了求助，故选A。
小题1:根据But I kept working hard and I succeeded(成功) at last. You should take it easy and try your best. Tomorrow is another day. I believe you can do better.描述，可知这主要是鼓励小明，让他感觉好一点。故选B。
小题1:联系下文I believe you can do better.可知意思是明天还有很多希望，故选A。
小题1:根据When I was at your age, I didn’t do well at school.描述，可知选C。