Nina =)

I\'m so sorry that I couldn\'t answer your phone.

>>I\'m so sorry that I couldn\'t answer your call.

I don\'t know why, but there was a problem in my phone electronically ㅜ_ㅜ

>>Correct

When I was about to answer your call, my phone turned off again and again.

>>When I was about to answer your call, my phone kept on restarting.
I was so sad because I wasn\'t able to say \"Happy new year\".

>>Correct
However, finally, we could meet tomorrow.

>>Correct
wow it was very long vacation.

>>Wow, it was a very long vacation.
I hope you had a great time.

>>Correct
here in Seoul. It\'s snowy, I slide on the ice many times nowadays oh my god :(
hahaha

>>Here in Seoul, it\'s snowy. I slip on the ice many times nowadays.

I could feel joy of learning English because of you.

>>I feel the joy of learning English because of you.
I really really want to say thank you.

>>Correct
Example: ___ she _____ the car? (to clean)
Answer: Has she cleaned the car?
1. What have you written in your text? (to write)
>>Correct
2. Has Bill turned off the radio? (to turn off)

>>Correct
3. Have you ever flied in a helicopter? (to fly)
>>Have you ever flown in a helicopter?
4. Who has broken the window? (to break)

>>Correct
5. Have you ever cooked for your friends? (to cook)