Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

This document is a [?].

A boy is [?] us his [?] to [?] the [?].

his first solution is to [?] [?].

He thinks we [?] have a special [?] for the environment.

We should [?] [?] the [?] on that day.