5件の評価：
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kou2016-10-11 22:26
I think he is a nice teacher!! Because he taught me a lot of meanings of many words and he is a kind man also. I recommend him to everyone!!!
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romarttos2016-10-10 19:36
Teacher Costello is competent, friendly and patient.
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Yuki2016-09-18 09:55
（評価のみ）
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Jozeildo2016-09-04 12:33
Teacher Costello is one of the best teacher I already saw. His american English pronunciation is perfect and clear. He is a highly recommended teacher.
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Atsushi2016-08-21 10:55
I think he doesn't understand the Callan method...
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fourleafclover2016-05-27 23:30
I thought that all teachers have same lesson manual.But this lesson was different as usual. If the students is young,asking your age is OK,I think.But me・・・I don't want to ask my age at the very beginning of the lesson. my family and my real name also. Because It was first time that I met.