Men are stronger than women.  That’s why they are the heads of the family. 

I don’t know why Dr. Ling didn’t give me an ‘A’ for the assignment.  I know I am better than all the other students.  

Mom, don’t worry.  I know it is already 8.55 a.m. and the exam starts at 9.00 a.m.  We still can make it on time if you drive 160 km an hour for the next 30 km.

All Japanese people are quiet and hardworking. So, Yuki must be exactly the same.