【正确答案】
Dear Sir,
I am Li Ming, a student entrusted by the Students' Union to be responsible for selecting candidates for members to work in the Union.
After several weeks investigations and surveys I find that a student of mine, whose name is Gao Jin, is a suitable candidate for the post. The reason for me to recommend her is that she is eager to join the Students' Union since she believes that it is an organization that works for the welfare of all the students'.
Gao Jin is a student who is very good at study and she has always been the best student in her class. She has been the monitor of her class since she came to the school. All her classmates like her very much.
I believe that she will be a good worker in the Students' Union be- cause she is a capable and nice student.
Yours Faithfully
Li Ming