My answer

1. What is the opposite of happy? unhappiness 2. What is the opposite of black? white 3. What is the opposite of up? down 4. What is the opposite of under? above 5. What is the opposite of crooked? straight This problem was interesting. I and my girlfriend are watching movie. Movie's name is 'help'. It would be interesting. Thank you~ Have a nice day.

Hi [이름]! Thank you for doing your homework. You did a great job. Keep up the goodwork!  I hope you and your girlfriend would enjoy the movie. Take care and have a great day!!!

 

Here are my corrections:

1. What is the opposite of happy? unhappiness

>>Correct! But it could also be - sad
2. What is the opposite of black? white

>>Correct!
3. What is the opposite of up? down

>>Correct!
4. What is the opposite of under? above
>>Correct!
5. What is the opposite of crooked? straight

>>Correct!
This problem was interesting.

>>Correct!
I and my girlfriend are watching movie.

>>Me and my girlfriend are watching a movie.
Movie\'s name is \'help\'.

>>The movie\'s title is \"Help\".
It would be interesting.

>>Correct!
Thank you~

>>Thank you!
Have a nice day.

>>Correct!