Xiaodong ______ goes to school by bike. She walks to school.

My father told me he _____ me to the Great Wall next week.

He eats      food, so he is      fat.

I have two pens. ______ is red, ______ is black. 

---_________do you write a letter to your father?--- I seldom or never do that now. Instead, I call or e-mail him almost every day.