While Momo and Mina are sleeping together hugging each other, the window suddenly opened and the cold breeze made them hug each other tighter 

  "Trrrrriiiinnnnnggggggg!!!!"     The pupils went to school and it's their first day of examination.     "Ok class you're first examination is about ABC, I made this easy as a christmas gift! Goodluck class and Merry Christmas!" They're new teacher said, Ms. Jiwon   But Jihyo is having a hard time answering the "Fill in the blanks"   "Hmmm... What is next to the letter D?.... Ohh! Its 3!"   "Teacher, I'm done!" Sana said while raising her hand.   "Oh! You're done? Very Good!!" The teacher said.   "Hmm! I gotta show Momo that I'm smart..." Sana whispered to herself while walking towards the teacher's table.   Suddenly, Mina ran towards the teacher's table which made her the first to pass the test.   Sana gasp and she's quite shocked that Mina got in her way again.   "Wow... Mina and Sana is so fast..." Momo said to herself.   - -   "Ok class, first examination is over, next subject is Math," The teacher said.   The second examination started and once again, Jihyo is having a harder time.   "3 + 3... That's actually..... 33? YOSH! This is going to be easy now it's all 6+6 and 2+5. tsk! Just mix them and exams are perfect!"     4 Days later....     "Ok so... Class! I'm gonna return you're test paper now," the teacher said to the students.   "ABC Test- Highest Grade: Sana & Mina, Second to the highest: Tzuyu, Nayeon & Chaey