My parents always ________ the best in me andencourage（鼓励） me.

Look at these tracks. It _____ be a wolf.” —Don’t be so sure. I think it _____ be a fox.

Cindy , don’t eat in the classroom.— , Mr. Hill.

What the science teacher does andsays ____ of great importance to college students

What is your sister going to be ________ she growsup–She is going to be an engineer.