18th september 2009to whom it may concern,i have known mr. xxx ever since he was an ma student, and since the autumn of 2008 he has been under my supervision as a phd candidate. in these years, he has attended my courses and seminars in language testing, esl reading theory and practice, psycholinguistics, etc. he has impressed me as an intelligent, hardworking, and highly motivated student with great potential for academic achievement and intellectual independence. i have noticed, much to my pleasure, that he has a strong desire to probe into academically challenging topics and has the kind of determination and perseverance necessary for conducting academic research.mr. xxx has read, extensively, literature on language testing, corpus linguistics, syntax, pragmatics, second language acquisition, and other related subjects. this, i believe, has equipped him with the necessary theoretical knowledge which will enable him to undertake his planned research. so far he has published, as a co-author, an article on the tagging principles of corpus for english majors, in addition to papers accepted and presented at several national symposiums on the mainland.mr. xxx has been heavily involved in two state-funded research projects: construction and applications of corpus for english majors, and assessing spoken english of chinese science and engineering majors: a corpus-based approach. in addition, he has also been a major contributor in two university-funded research projects, both of which concern corpus-based studies. his participation in these projects has enabled him to acquire much empirical experience in conducting research work, in particularcorpus-based research.yours sincerely,zuoprofessor of english,college of english language & literatureshanghai international studies university550 dalian rd (w)shanghai 200083p. r. chinae-mail address-1 i came to know him in september 1987 when mr. chen enrolled in my class on fortran iv programming, a three semesters course. in the class he was one of the most outstanding students. at the semester final he earned a high grade of 81, which should be a according to our grading system. i also found him good at other studies.2 though mr. cheng graduated from this college 5 years ago, he keeps, contact with me very often. worthy of mention also is his personality, honest, reliable, responsible and mature.3 i am pleased to write this letter for my former student miss nan li, who graduated from this college with an l.b. degree in june 1978.fourth year study, i instructed her in anglo-american laws on trespass. so i have known her quite well.miss lis performance, like that in many other courses she taken, was excellent with a superior grade of 86 for the first semester, and 84 for the second semester. in our university and in other university here, 80 is considered a , the highest level.gregmattoefl 51025i dont know dear sir/madam:i got to know him personally when he was taking the co