A Let's clean it together.
B Let's put away the books, Yang Ling.
C First, let's sweep the floor.
D Our classroom is clean now.
E Our classroom is dirty.
___ | A | ___ | ___ | ___ |
Let's___ ___ classroom!
Please ___ ___ the books, Yang Ling.
Let's___ ___ ___ .
—I can ___ ___ ___. — ___ ___ .
It's a ___ ___.