Hello. My name is Jack.

Dear, Teacher. Nice to meet you. - Good Sentence

I'm Jack. My original name is Lee jae-yeob. - Good Sentence

But, you can call me just Jack. = But, you can just call me Jack.

I'm sorry that I didn't get your call yesterday. - Good Sentence

I forgot the class yester day. - Good Sentence

Because I was taking care of my baby crying. = Because I was taking care of my crying baby.

My baby was born just 50 days ago. - Good Sentence

Anyway, I appreciated having this class. I'm expecting to spend good time to improve myself through our class. Thank you. Sincerly yours. - Good Sentence

Hi Jack!

You're supposed to be my first student yesterday but you were absent. But it's okay because we still have more classes to come. I will do my best to help you enhance your communication skills. I'm looking forward to talking to you on Friday. Have a good day!

Teacher Kat :)