Students  should ______ to choose their own uniforms.

– It’s difficult for the village children to cross the river to get to school.– We think a bridge ________ over the river.

The children were made ______ homework first.

—Jack, your hair is too long! —Really? I’ll have it _____ right now. 

---How often do I need to feed the birds?---They______ food every day, or they will be hungry.