My name is Kang jeongwoo = My name is Jeong Woo Kang.

(NOTE: Jeong Woo, always remember that in the Engliah language, you must say and write your first name first before your family name. EX: My name is Ji Hee Kang. / My name is Joo Min Kim.

And, always start your name with a capital letter. ^^)

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Hi Jeong Woo. :) Very impressive job on your homework. ;)  I hope that you'll have a wonderful day tomorrow. ;)  Have fun for the rest of the night. ;) See you tomorrow. Good night. ^^

~Teacher Lady ^.^~