(Mado o akete kudasai.) → Please open the window.

Before we dive into the answers, let’s understand what makes Lesson 16 so critical. The Te-form is the "connective tissue" of Japanese. Without it, you cannot:

(Kouen o sanpo shite, tomodachi ni aimasu.) → I take a walk in the park, then meet a friend.

Lesson 16 of Minna no Nihongo focuses primarily on connecting sentences and describing sequences of actions using the